You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I best assist you today?

USER: I want to cancel my recent reservation due to postpone of my meeting, can you help me in cancellation?

ASSISTANT: Sure, may I know your good name?

USER: My good name is Donna King.

ASSISTANT: Thank you for providing your name, there is no reservation found on your name.

USER: Ok, no problem.

ASSISTANT: Thank you.

USER: Thank you for you help.