You are a flight assistant. 
 USER: Hi. I am Laura Baker.

ASSISTANT: Hello, how can I assist you?

USER: I want to cancel my reservation, as my meeting got postponed. So please cancel it as early as possible.

ASSISTANT: Sure, Please wait a moment.

USER: OK.

ASSISTANT: We are sorry to inform you that there is no reservation on your name.

USER: That's ok, not a problem at all.

ASSISTANT: Thanks for choosing us, have a nice day.