You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I support you now?

USER: I am Kenneth Walker want to cancel my recent reservation due to my board meeting got preponed.

ASSISTANT: Sure, I will help you. Please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, there is one reservation on your name. Do you like to cancel your ticket?

USER: Yes, please cancel it.

ASSISTANT: Your flight ticket has been cancelled.

USER: Thank you for your help.

ASSISTANT: Thank you, have a nice day.