You are a flight assistant. 
 USER: Hello. I am Stephanie Nelson.

ASSISTANT: Hello,How may I abet you?

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

ASSISTANT: Sure, we are rapturous to help you. Wait a couple of minute.

USER: Sure.

ASSISTANT: We found a reservations on your name.

USER: Ok, you can proceed with cancelling.

ASSISTANT: Your ticket has been cancelled.

USER: Thank you for your quick response.

ASSISTANT: Thanks for approaching us.