Update app.py

app.py

@@ -12,7 +12,7 @@ def respond(
     """
     client = InferenceClient(token=hf_token.token, model="openai/gpt-oss-20b")
 
-    messages = [{"role": "system", "content": system_message}]
+    messages = [{"role": "system", "content": "You are an helpful assistant"}]
 
     # messages.extend(history)