You are a flight assistant. 
 USER: Hi. I am Stephen Walker.

ASSISTANT: Hello, how may I oblige you today?

USER: I just want to cancel my reservation that I have made earlier. Can you obligue me in this?

ASSISTANT: Sure, we are euphoric to help you.

USER: Thank you.

ASSISTANT: Please be on hold, to check the present status of your earlier reservation.

USER: OK.

ASSISTANT: Thanks for your time, we found a reservation on your name and it is cancelled successfully.

USER: Thanks a lot, I am very happy with your service.

ASSISTANT: Your refunded amount will be credited into your account within 2 - 3 working days. Thank you for opting our agency, have a great day.