You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER:  I need your help to cancel my recent reservation.

ASSISTANT: Sure. May I know your good name please?

USER: My name is Helen Parker.

ASSISTANT: OK Parker, I got your name matched  in our database. Your ticket had cancelled successfully.

USER: Thank you for the help.

ASSISTANT: Thank you.