Added in random msgs; yes or no

app.py

@@ -1,7 +1,9 @@
 import gradio as gr
+import random
 
-def echo(message, history):
-    return message
+def chance(message, history):
+    response_options["yes","no"]
+    return random.choice(response_options)
 
-chatbot = gr.ChatInterface(echo)
+chatbot = gr.ChatInterface(chance)
 chatbot.launch()