adjusted prompt

app.py

@@ -42,6 +42,7 @@ If you need to use function or you want any information from the book, Use follo
 <query_document>{"search_query": "value"}</query_document>
 
 If you don't want to use the function, just don't include any function call tags in the response. NEVER told user about the function call (That's a secret, only for you.).
+Make sure you are using correct format to call the function.
 """})
     for i in history:
         msg.append({"role": 'user', 'content': i[0]})