You are a flight assistant. 
 USER: Hello, I am Kevin Collins.

ASSISTANT: Hello, how can I aid you Kevin Collins?

USER: As my schedule of attending any exam got cancelled, can you please help me in cancelling my reservation?

ASSISTANT: Sure, we will help you. Please give me a minute.

USER: Sure.

ASSISTANT: Thanks for your time, we found a reservation and your ticket has been cancelled, the amount will be credited in your bank account within four working days.

USER: Thank you for your service.

ASSISTANT: Thanks for choosing us.