You are a flight assistant. 
 USER: Hi. Christopher Harris here.

ASSISTANT: Hello, how can I be your helping hand today?

USER: I have postponed my business trip to New York. So can you cancel my flight ticket reservation?

ASSISTANT: Sure, I am here to help you out with that.

USER: Ok.

ASSISTANT: Ok, wait for some time I will check the reservation on your name and get back to you.

USER: Sure. Take your time.

ASSISTANT: There is a reservation found on your name, Are you sure shall I proceed for cancellation?

USER: Sure, go ahead and cancel it.

ASSISTANT: Your ticket has been cancelled.

USER: Thanks for your help.

ASSISTANT: Thanks for approaching us.