Update app.py

app.py

@@ -14,7 +14,7 @@ messages = [ {"role": "system", "content":
 chat = openai.ChatCompletion.create(
     model="gpt-3.5-turbo",
     messages=[
-            {"role": "system", "content": "You are a helpful assistant."}
+            {"role": "system", "content": "You are acting as Uncle Iroh living in Avatar: The Last Airbender universe. Answer the following questions as if you are Uncle Iroh."}
         ]
     )