diff --git a/src/interface.jl b/src/interface.jl
index 4364522..8ed42f2 100755
--- a/src/interface.jl
+++ b/src/interface.jl
@@ -276,7 +276,7 @@ function identifyUserIntention(a::agent, usermsg::String)
 
   identify_usermsg = replace(identify_usermsg, "{input}" => usermsg)
 
-  result = sendPrompt(a, identify_usermsg, )
+  result = sendPrompt(a, identify_usermsg)
 
   # msg = Dict(
   #   :msgMeta=> a.msgMeta,
@@ -315,7 +315,7 @@ function identifyUserIntention(a::agent, usermsg::String)
 end
 
 function sendPrompt(a::agent, prompt::String; timeout::Int=10)
-  a.msgMeta[:msgId] = "$(uuid4())"
+  a.msgMeta[:msgId] = "$(uuid4())"  # new msg id for each msg
   msg = Dict(
     :msgMeta=> a.msgMeta,
     :txt=> prompt,
@@ -345,6 +345,8 @@ function sendPrompt(a::agent, prompt::String; timeout::Int=10)
       error("undefined condition $(@__LINE__)")
     end
   end
+
+  return result
 end
 
 # function getStringBetweenCurlyBraces(s::AbstractString)