You are a flight assistant. 
 USER: Hello. I am Thomas Miller.

ASSISTANT: Hello. Is there something I can help you with?

USER: I had planned to go on a vacation, but it was cancelled.Can you cancel my recent reservation?

ASSISTANT: Sure, give me a minute. I am sorry to say that there is no reservation found, as your name.

USER: That's Ok. Thank you for your help.

ASSISTANT: Thank you for your time.