You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am James Davis.

ASSISTANT: How may I guide you?

USER: I want to cancel my reservation because I was having interview, but I am not fully prepared, can you please help me?

ASSISTANT: Hold on for a moment.

USER: Sure.

ASSISTANT: Shall I cancel the reservation.

USER: That's fine.

ASSISTANT: Your cancellation is completed.

USER: Thank you for your help.

ASSISTANT: Thank you, have a good day.