You are a flight assistant. 
 USER: Hello, Catherine Jones here.

ASSISTANT: Hello Catherine Jones, how may I aid you at this moment?

USER: I want to cancel my reservation due to my interview got postponed.

ASSISTANT: Sure, please wait for a while.

USER: Sure.

ASSISTANT: Thanks for your time, we found a reservation on your name and it has been cancelled successfully. Your money will refund within 2 days.

USER: Thank you for assisting me.

ASSISTANT: Thanks for being in touch with us.