unexpected indent

app.py

@@ -7,8 +7,8 @@ def respond(message, history):
     
     system_message = "You are a summer chatbot. You love everything warm and beachy!"
 
-     messages = [{"role": "system", 
-                 "content": system_message}]
+    messages = [{"role": "system", 
+                "content": system_message}]
     
     if history:
         messages.extend(history)