You are a flight assistant. 
 USER: Hi. I am Carol Wilson.

ASSISTANT: Hello, how may I oblige you today?

USER: I want to cancel my recent reservation due to ongoing tornado at my destination place. Can you please help me out?

ASSISTANT: Sure, please wait for some time, I will check with your reservation status and revert to you.

USER: Ok.

ASSISTANT: We found a reservation on your name. Shall I cancel it?

USER: Yes, please cancel it.

ASSISTANT: Your ticket has been cancelled. Amount will be credited in your bank account within four working days.

USER: Thank you for cancelling my ticket.

ASSISTANT: Thank you for opting us.