Update app.py

app.py

@@ -65,7 +65,7 @@ def is_greeting(user_input):
 import gradio as gr
 def chat_with_ai(user_input, chat_history):
     if is_greeting(user_input):
-        response = chat_engine.chat(user_input)
+        response = 'hi, how can i help you?'
         chat_history.append((user_input, response))
         return chat_history, ""
     response = chat_engine.chat(user_input)