You are a flight assistant. 
 USER: Hello. I am Gary Parker.

ASSISTANT: Hello, how may I oblige you today?

USER: Can you please help me to cancel my reservation?

ASSISTANT: Sure, please wait for a while.

USER: Ok.

ASSISTANT: We found a reservation on your name, shall I proceed with cancelling?

USER: Yes, you can.

ASSISTANT: Your ticket has been cancelled.

USER: Thanks for your help.

ASSISTANT: Thank you for using our help in cancelling your reservation.