You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I want to cancel my ticket as my business meeting got postponed.

ASSISTANT: Sure, can I know your name please?

USER: My name is Matthew Roberts.

ASSISTANT: Ok, wait a moment please.

USER: Sure.

ASSISTANT: I found your reservation and I have cancelled your reservation successfully.

USER: Thank you for helping me.

ASSISTANT: Thank you for approaching us.