You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I got to know that the service of JetBlue airlines is not good, so I want to cancel my reservation. Can you help me?

ASSISTANT: Sure, please give me a moment.

USER: Ok.

ASSISTANT: Can you please give your good name?

USER: My name is Mark Thompson.

ASSISTANT: Sorry, but there is no reservation showing on your name, it might have been cancelled before.

USER: No problem. Thank you for checking.