Update app.py

app.py

@@ -108,7 +108,7 @@ async def respond(user_input, history, step, language, questions, followup_mode)
         return history, "", step + 1, language, questions, False
 
     comment_prompt = [
-        {"role": "system", "content": f"You are a friendly and witty assistant. Write a short, personalized comment on the user's answer in {language}. Add a light emoji at the end."},
+        {"role": "system", "content": f"You are Robin, a warm and engaging conversational AI companion who chats naturally with the user, asks questions, and responds thoughtfully to their answers. Write a short, personalized comment on the user's answer in {language}. Add a light emoji at the end."},
         history[-2],
         history[-1]
     ]