You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I aid you?

USER: I am Kimberly Lopez. I want to cancel my recent reservation which was reserved earlier in last week due to postpone of my business trip. Could you please help me?

ASSISTANT: Sure, please wait for a while.

USER: Ok.

ASSISTANT: We found a reservation on your name. Shall I proceed with cancelling?

USER: Please proceed with cancellation.

ASSISTANT: Your reservation has been cancelled.

USER: Thank you for the best service.

ASSISTANT: Thank you for contacting us, have a good day.