You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, welcome to ABC flight ticket booking agency. What help can I do for you at this pleasant evening?

USER: I want to attend a business meeting in New York, but unfortunately meeting has been cancelled. Can you help me to cancel that reservation?

ASSISTANT: Sure, on what name is the ticket booked?

USER: With Virginia Martinez it's booked.

ASSISTANT: I have found a reservation on your name. Are you sure to cancel it?

USER: Yes cancel it.

ASSISTANT: Your reservation is cancelled successfully.

USER: Thanks for helping.

ASSISTANT: Thank you for using our service.