diff --git a/src/interface.jl b/src/interface.jl
index eacc7ec..25eb349 100644
--- a/src/interface.jl
+++ b/src/interface.jl
@@ -395,15 +395,21 @@ function conversation(a::sommelier; userinput::Union{Dict{String, Any}, JSON.Obj
         addNewMessage(a, "assistant", assistant_response; maximumMsg=maximumMsg)
 
         items_info = []
+        send_item_ind = []  # index of the item being send to frontend
         if haskey(a.memory["shortmem"], "items_info")
+
           for (i, item) in enumerate(a.memory["shortmem"]["items_info"])
             if haskey(item, "wine_name") && occursin(item["wine_name"], thoughtdict["action_input"])
-              push!(items_info, item)
-              deleteat!(a.memory["shortmem"]["items_info"], i)
+              push!(items_info, deepcopy(item))
+              push!(send_item_ind, i)
+
             end
           end
-        end
+          # remove sent items
+          deleteat!(a.memory["shortmem"]["items_info"], send_item_ind)
 
+        end
+        
         response_to_frontend = Dict{String, Any}(
           "role" => "assistant",
           "content" => [
@@ -431,15 +437,21 @@ function conversation(a::sommelier; userinput::Union{Dict{String, Any}, JSON.Obj
         addNewMessage(a, "assistant", assistant_response; maximumMsg=maximumMsg)
 
         items_info = []
+        send_item_ind = []  # index of the item being send to frontend
         if haskey(a.memory["shortmem"], "items_info")
+
           for (i, item) in enumerate(a.memory["shortmem"]["items_info"])
             if haskey(item, "wine_name") && occursin(item["wine_name"], thoughtdict["action_input"])
-              push!(items_info, item)
-              deleteat!(a.memory["shortmem"]["items_info"], i)
+              push!(items_info, deepcopy(item))
+              push!(send_item_ind, i)
+
             end
           end
-        end
+          # remove sent items
+          deleteat!(a.memory["shortmem"]["items_info"], send_item_ind)
 
+        end
+        
         response_to_frontend = Dict{String, Any}(
           "role" => "assistant",
           "content" => [
@@ -527,7 +539,14 @@ function think(a::T)::NamedTuple{(:thoughtdict, :result_raw), Tuple{OrderedDict,
   result_raw = nothing
   if thoughtdict["action_name"] ∈ ["CHAT_BOX"]
 
-    thoughtdict, result_raw = generatechat!(a)
+    # sometime CHAT_BOX input is too short. 
+    # if thoughtdict["action_input] < 20 character, use generatechat!()
+    if length(thoughtdict["action_input"]) < 20 
+      thoughtdict, result_raw = generatechat!(a)   
+    else
+      thoughtdict["action_result"] = "Action result is the next user dialogue."
+      result_raw = thoughtdict["action_input"]
+    end 
 
   elseif thoughtdict["action_name"] == "END_CONVER_GUIDELINE"