Improve prompt

app.py

@@ -801,9 +801,9 @@ You have access to the following tools:"""
 
 PREFIX_2 = """You are a helpful AI assistant. 
 Your mission is to answer the following request as best as you can with detail information and explanation. 
-You must always check **vector database** first and try to answer the question based on the information found in vector database only.
-Only when there is no information available from **vector database**, you can search information by using other tools.
-You are capable of **Any** task and write the final answer in Markdown format.
+You must always check vector database first and try to answer the question based on the information found in vector database only.
+Only when there is no information available from vector database, you can search information by using other tools.
+You are capable of **any** task.
 ---
 You have access to the following tools:"""
 
@@ -837,18 +837,18 @@ When you don't have enough information, you can use tools and you must define **
 FORMAT_INSTRUCTIONS_3 = """
 When you don't have enough information, you can use tools and you must use the following format to define **Action:** and **Action Input:** after **Thought:**:
 '''
-Thought: you should always think about what to do
-Action: the action to take, should be one of [{tool_names}]
-Action Input: the input to the action
-Observation: the result of the action
+Thought: you should always think about what to do |
+Action: the action to take, should be one of [{tool_names}] |
+Action Input: the input to the action |
+Observation: the result of the action |
 '''
 If **Thought:** or **Action:** or **Action Input:** is missing in the response, please re-write the response.
 
 ---
 When you have gathered all the information to provide final answer, you must use the following format to define **Final Answer:** after **Thought:**:
 '''
-Thought: I now know the final answer
-Final Answer: the final answer to the original input question
+Thought: I now know the final answer |
+Final Answer: the final answer to the original input question |
 '''
 If **Thought:** or **Final Answer:** is missing in the response, please re-write the response.
 """