You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I be there for you?

USER: Owing an emergency, I want to cancel my reservation which is with the name Margaret Clark.

ASSISTANT: Sure, let me check the reservation list and revert you.

USER: Ok.

ASSISTANT: We found a reservation matching your name. Shall I proceed with cancellation?

USER: Yes, you can.

ASSISTANT: You may receive only 85% of refund if you cancel it. Is that okay with you?

USER: Yes, I am perfectly fine with it.

ASSISTANT: Ok, your ticket has been cancelled. Do you want to book any other flight?

USER: Not now, I will be back soon.

ASSISTANT: Thank you for choosing our service. We look forward to serve you again.

USER: Fine, thanks for the help.