Update app.py

app.py

@@ -4,8 +4,8 @@ import random
 def echo(message, history):
     choices = ["yes", "no"]
     #use random to select one of these choices
-    print(f{random.choice(choices)})
-	return message
+    random_message = random.choice(choices)
+	return random_message
 
 chatbot = gr.ChatInterface(echo, type = "messages")