You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I best serve you now?

USER: I am Lisa Wright. I need to cancel my recent reservation due to postpone of my exams. Could you please help me in doing that?

ASSISTANT: Sure, I can cancel your reservation right now.

USER: Thank you.

ASSISTANT: Please wait for a couple of minutes.

USER: Sure.

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

USER: You can proceed with cancelling my reservation.

ASSISTANT: Your ticket has been cancelled successfully.

USER: Thank you.

ASSISTANT: Thanks for reaching us, we are hope to serve you again.