diff --git a/src/interface.jl b/src/interface.jl
index 90bdc22..ecd9539 100644
--- a/src/interface.jl
+++ b/src/interface.jl
@@ -133,7 +133,7 @@ function decisionMaker(state::T1, context, text2textInstructLLM::Function,
 
   systemmsg = 
   """
-    You are a helpful assistant that get the data from a database to satisfy the user's query. 
+    You are a helpful assistant that find the data from a database to satisfy the user's query. 
     You are also eager to improve your helpfulness.
 
     At each round of conversation, the user will give you the current situation:
@@ -146,12 +146,12 @@ function decisionMaker(state::T1, context, text2textInstructLLM::Function,
     
     You should consider the following guidelines:
     - Do not create any table in the database
+    - Start only with the infomation the the query. 
     - Column name can be the same in different tables. Refer to column comments to get more details by using TABLEINFO function
     - A junction table can be used to link tables together. Another use case is for filtering data.
     - If you can't find a single table that can be used to answer the user's query, try joining multiple tables to see if you can obtain the answer.
     - If you are unable to find the requested information, kindly inform the user, "The current data in our database does not provide the specific answer to your query".
     - Text information in the database usually stored in lower case. If your search returns empty, try using lower case to search.
-    - Do not use backticks (`). Use double quotes instead.
 
     You should then respond to the user with interleaving Understanding, Reasoning, Plan, Action:
     1) Understanding: 
@@ -224,59 +224,103 @@ function decisionMaker(state::T1, context, text2textInstructLLM::Function,
       <|start_header_id|>assistant<|end_header_id|>
       """
 
-    try
-      response = text2textInstructLLM(prompt)
+    # try
+    #   response = text2textInstructLLM(prompt)
 
-      # textToDict() search for action_input
-      responsedict = GeneralUtils.textToDict(response,
-                  ["Understanding", "Reasoning", "Plan", "Action_name", "Action_input", "Observation"], 
-                  rightmarker=":", symbolkey=true, lowercasekey=true)
+    #   # textToDict() search for action_input
+    #   responsedict = GeneralUtils.textToDict(response,
+    #               ["Understanding", "Reasoning", "Plan", "Action_name", "Action_input", "Observation"], 
+    #               rightmarker=":", symbolkey=true, lowercasekey=true)
 
-      delete!(responsedict, :observation)
+    #   delete!(responsedict, :observation)
 
-      # remove backticks
-      if occursin("```", responsedict[:action_input])
-        responsedict[:action_input] = 
-          GeneralUtils.extract_triple_backtick_text(responsedict[:action_input])
-      end
+    #   # [WORKING] remove backticks Error occurred: MethodError: no method matching occursin(::String, ::Vector{String})
+    #   if occursin("```", responsedict[:action_input])
+    #     responsedict[:action_input] = 
+    #       GeneralUtils.extract_triple_backtick_text(responsedict[:action_input])
+    #   end
 
-      toollist = ["TABLEINFO", "GETDATA"]
-      if responsedict[:action_name] ∉ toollist
-        error("SQL decisionMaker() didn't use the given functions ", @__FILE__, " ", @__LINE__)
-      end
+    #   toollist = ["TABLEINFO", "GETDATA"]
+    #   if responsedict[:action_name] ∉ toollist
+    #     error("SQL decisionMaker() didn't use the given functions ", @__FILE__, " ", @__LINE__)
+    #   end
 
-      for i in toollist
-        if occursin(i, responsedict[:action_input])
-          error("Action_name is in action_input which is not allowed.")
-        end
-      end
+    #   for i in toollist
+    #     if occursin(i, responsedict[:action_input])
+    #       error("Action_name is in action_input which is not allowed.")
+    #     end
+    #   end
 
-      for i ∈ [:understanding, :reasoning, :plan, :action_name, :action_input]
-        if length(JSON3.write(responsedict[i])) == 0
-          error("$i is empty ", @__FILE__, " ", @__LINE__)
-        end
-      end
+    #   for i ∈ [:understanding, :reasoning, :plan, :action_name, :action_input]
+    #     if length(JSON3.write(responsedict[i])) == 0
+    #       error("$i is empty ", @__FILE__, " ", @__LINE__)
+    #     end
+    #   end
 
-      # check if there are more than 1 key per categories
-      for i ∈ [:understanding, :reasoning, :plan, :action_name, :action_input]
-        matchkeys = GeneralUtils.findMatchingDictKey(responsedict, i)
-        if length(matchkeys) > 1
-          error("DecisionMaker has more than one key per categories")
-        end
-      end
+    #   # check if there are more than 1 key per categories
+    #   for i ∈ [:understanding, :reasoning, :plan, :action_name, :action_input]
+    #     matchkeys = GeneralUtils.findMatchingDictKey(responsedict, i)
+    #     if length(matchkeys) > 1
+    #       error("DecisionMaker has more than one key per categories")
+    #     end
+    #   end
 
-      state[:decisionMaker] = responsedict
+    #   state[:decisionMaker] = responsedict
 
-      return responsedict
-    catch e
-      io = IOBuffer()
-      showerror(io, e)
-      errorMsg = String(take!(io))
-      st = sprint((io, v) -> show(io, "text/plain", v), stacktrace(catch_backtrace()))
-      println("")
-      println("\n~~~ SQLLLM decisionMaker() Attempt $attempt. Error occurred: $errorMsg\n$st ", @__FILE__, " ", @__LINE__)
-      println("")
+    #   return responsedict
+    # catch e
+    #   io = IOBuffer()
+    #   showerror(io, e)
+    #   errorMsg = String(take!(io))
+    #   st = sprint((io, v) -> show(io, "text/plain", v), stacktrace(catch_backtrace()))
+    #   println("")
+    #   println("\n~~~ SQLLLM decisionMaker() Attempt $attempt. Error occurred: $errorMsg\n$st ", @__FILE__, " ", @__LINE__)
+    #   println("")
+    # end
+
+    response = text2textInstructLLM(prompt)
+
+    # textToDict() search for action_input
+    responsedict = GeneralUtils.textToDict(response,
+                ["Understanding", "Reasoning", "Plan", "Action_name", "Action_input", "Observation"], 
+                rightmarker=":", symbolkey=true, lowercasekey=true)
+
+    delete!(responsedict, :observation)
+
+    # [WORKING] remove backticks Error occurred: MethodError: no method matching occursin(::String, ::Vector{String})
+    if occursin("```", responsedict[:action_input])
+      responsedict[:action_input] = 
+        GeneralUtils.extract_triple_backtick_text(responsedict[:action_input])
     end
+
+    toollist = ["TABLEINFO", "GETDATA"]
+    if responsedict[:action_name] ∉ toollist
+      error("SQL decisionMaker() didn't use the given functions ", @__FILE__, " ", @__LINE__)
+    end
+
+    for i in toollist
+      if occursin(i, responsedict[:action_input])
+        error("Action_name is in action_input which is not allowed.")
+      end
+    end
+
+    for i ∈ [:understanding, :reasoning, :plan, :action_name, :action_input]
+      if length(JSON3.write(responsedict[i])) == 0
+        error("$i is empty ", @__FILE__, " ", @__LINE__)
+      end
+    end
+
+    # check if there are more than 1 key per categories
+    for i ∈ [:understanding, :reasoning, :plan, :action_name, :action_input]
+      matchkeys = GeneralUtils.findMatchingDictKey(responsedict, i)
+      if length(matchkeys) > 1
+        error("DecisionMaker has more than one key per categories")
+      end
+    end
+
+    state[:decisionMaker] = responsedict
+
+    return responsedict
   end
   error("DecisionMaker failed to generate a thought ", response)
 end
@@ -945,7 +989,9 @@ function query(query::T, executeSQL::Function, text2textInstructLLM::Function;
   extracted = resultState[:thoughtHistory][latestKey]
 
   # add to vectorDB only if the answer is achieved and the state is terminal 
-  if addSQLVectorDB !== nothing && resultState[:isterminal] == true
+  if addSQLVectorDB !== nothing && resultState[:isterminal] == true &&
+    resultState[:rawresponse] !== nothing
+
     addSQLVectorDB(resultState[:thoughtHistory][:question], sql)
   end
 
@@ -1017,7 +1063,7 @@ function generatequestion(state::T1, context, text2textInstructLLM::Function;
 
   systemmsg = 
   """
-    You are a helpful assistant that generate multiple questions about the current situation.
+    You are a SQL expert that generate multiple questions about the current situation.
     
     At each round of conversation, the user will give you the current situation:
     User query: ...
@@ -1035,6 +1081,9 @@ function generatequestion(state::T1, context, text2textInstructLLM::Function;
     3) Some information can be accessed by joining multiple tables.
     4) Do not generate any question or comments at the end.
 
+    You should consider the following guidelines:
+    - When querying data in the database, start with broad search terms and refine your query later for more precise results. 
+
     You should then respond to the user with:
     1) Understanding: 
         - State your understanding about the current situation.
@@ -1052,6 +1101,13 @@ function generatequestion(state::T1, context, text2textInstructLLM::Function;
     A3: ...
     ...
 
+    Here are some examples:
+    Q: What information in the hints is not necessary based on the query?
+    A: Country is not specified in the query thus it should not be included in an SQL
+
+    Q: How can I modify a SQL example to fit my specific query needs?
+    A: ...
+
     Let's begin!
   """
   
diff --git a/src/llmfunction.jl b/src/llmfunction.jl
index 99f1cee..261b9e4 100644
--- a/src/llmfunction.jl
+++ b/src/llmfunction.jl
@@ -613,7 +613,7 @@ function SQLexecution(executeSQL::Function, sql::T
     tablesize = size(df)
     row, column = tablesize
     if row == 0  # if 0 row
-      error("The resulting table has 0 row. Possible causes: 1) You might be searching in the wrong place 2) There could be a typo in your search query.")
+      error("The resulting table has 0 row. Possible causes: 1) Your search criteria might be too specific. Relaxing some conditions could yield better results. Remember, you can always refine your search later. 2) There could be a typo in your search query. 3) You might be searching in the wrong place.")
     elseif column > 30
       error("SQL execution failed. An unexpected error occurred. Please try again.")
     end