You are a flight assistant. 
 USER: Hello. I am Andrew Scott.

ASSISTANT: Hello, how may I support you today?

USER:  I want to cancel my recent reservation, due to office work that my manager did not approve my leaves, so can you please cancel it?

ASSISTANT: Sure, I will help you with cancellation. Please wait for a moment, while I check for the reservation.

USER: Sure.

ASSISTANT: Thanks for waiting. I found the reservation on your name, shall I cancel the reservation?

USER: Yes, proceed.

ASSISTANT: Your reservation has been cancelled.

USER: Thanks for your information.

ASSISTANT: Thank you for reaching us, we hope see you again.