You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: The event which I am going to attend has been cancelled, please help me in cancelling my recent reservation.

ASSISTANT: May I know your name?

USER: My name is Laura Gonzalez.

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

USER: Thank you for your assistance.

ASSISTANT: Thank you.