You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I want to cancel my reservation as my plan to visit New York got cancelled. Can you cancel my reservation.

ASSISTANT: Sure, may I know your name please?

USER: My name is Janet Young.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: We found a reservation with your given name , shall I cancel it?

USER: Please cancel my reservation.

ASSISTANT: Your flight ticket has been cancelled.

USER: Thank you for helping me.

ASSISTANT: Thank you for choosing us.