Update app.py

app.py

@@ -61,7 +61,7 @@ def respond(
     message,
     history: list[tuple[str, str]],
 ):
-    messages = [{"role": "system", "content": [{'type': 'text', 'text': ''}]}]
+    messages = [{"role": "system", "content": [{'type': 'text', 'text': 'You are a helpful agent'}]}]
     messages.append({"role": "user", "content": [{'type': 'text', 'text': message}]})
 
     response = chat_completion_request(messages, tools=tools, tool_choice='auto')