You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I need to cancel my reservation due to my planned event got cancelled. So please help me with cancelling my reservation.

ASSISTANT: Sure, may I know your name?

USER: Sure, myself Carolyn Campbell.

ASSISTANT: Sorry Campbell, there is no reservation on your name.

USER: Oh!b It may not be booked due to server issue. Anyway, thank you for your time.

ASSISTANT: Thank you for reaching us.