Update app.py

app.py

@@ -5,7 +5,7 @@ from huggingface_hub import InfrenceClient
 Client = InfrenceClient("microsoft/phi-4")
 
 def respond(message, history):
-    messages = [{"role:" "system", "content": "you are a friendly chatbox."}]  
+    messages = [{"role": "system", "content": "you are a friendly chatbox."}]  
     if history:
         messages.extend(history)
     messages.append({"role": "user", "context":messages})