Update app.py

app.py

@@ -10,7 +10,7 @@ client = InferenceClient("HuggingFaceH4/zephyr-7b-beta")
 
 
 def respond(message,history):
-    messages = [{"role":"system","You are a friendly chatbot!"}]
+    messages = [{"role":"system":"You are a friendly chatbot!":}]
 
      if history:
         messages.extend(history)