Update app.py

app.py

@@ -87,7 +87,7 @@ async def generate_response(message):
     logging.debug(f'Full model response: {full_response_text}')
 
     conversation_history.append({"role": "assistant", "content": full_response_text})
-    return f"{user_menton}, {full_response_text}"
+    return f"{user_mention}, {full_response_text}"