Update app.py

app.py

@@ -1,7 +1,7 @@
 import gradio as gr
 import random
 
-def respond(Jonny_Silverhand):
+def respond(user_input):
     responses = {
         "night city": [
             "Night City is a vibrant and dangerous place! What do you want to know about it?",
@@ -35,7 +35,7 @@ def respond(Jonny_Silverhand):
         ]
     }
     
-    Jonny_Silverhand = user_input.lower()
+    user_input = user_input.lower()
     for key in responses:
         if key in user_input:
             return random.choice(responses[key])