You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Nancy Wilson.

ASSISTANT: Thank you for providing your good name.

USER: I want to cancel my reservation due to my business trip has been cancelled.

ASSISTANT: Sure, give me a minute.

USER: Sure.

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

USER: Thank you.

ASSISTANT: Thank you for choosing us, have a nice day.