Update app.py

app.py

@@ -1,10 +1,12 @@
 import gradio as gr
+import random 
 
-def echo(message, history):
-    return message
+def respond_yes_no_random(message, history):
+    responses = ["yes" , "No"]
+    return random.choice(responses)
 
-print("hello, world!")
 
-chatbot = gr.ChatInterface(echo, type="messages") #chatbot UI - conversation history and user input
+
+chatbot = gr.ChatInterface(respond_yes_no_random, type="messages") , title="Yes No Bot"
 
 chatbot.launch()