added in random message yes or no

app.py

@@ -1,8 +1,10 @@
 import gradio as gr
+import random
 
-def echo(message, history):
-    return message
+def random_response(message, history):
+    response_options = ["yes", "no"]
+    return random.choice(ressponse_options)
     
-chatbot = gr.ChatInterface(echo)
+chatbot = gr.ChatInterface(random_response)
 
 chatbot.launch()