You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I be of your assistance?

USER: I want to cancel my recent ticket booking due to office work that my manager did not approve my leaves, so can you please cancel it?

ASSISTANT: Sure, I can help you with that but you will get only 85% of refund if you want to cancel it. Is it ok with you?

USER: That's fine, you can proceed.

ASSISTANT: May I know on which name the ticket has been reserved?

USER: Reservation was done by the name James Hall.

ASSISTANT: Can you please wait for a moment, I will check with your reservation and revert to you with current status.

USER: Sure, please take your time.

ASSISTANT: Thanks for waiting. I have gone through the list but couldn't find any reservation with your name in our data base.

USER: That's fine, thank you for the response.

ASSISTANT: Thanks for choosing our service.