Update app.py

app.py

@@ -57,7 +57,9 @@ def chat_with_model(user_message, chat_history, max_new_tokens=256, temperature=
         chat_history = []
 
     # Build conversation history
-    history_text = "The following is a friendly conversation between a human and an AI assistant.\n"
+    # history_text = "The following is a friendly conversation between a human and an AI assistant.\n"
+    history_text = "The following is a friendly conversation between a human and an AI story-telling assistant. \
+            The assistant should tell a story according to human's requirment.\n"
 
     for msg in chat_history:
         role = "Human" if msg["role"] == "user" else "AI"