You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I want to cancel my recent reservation due to sudden postpone of my business meeting.

ASSISTANT: Ok.

USER: Can you help me with that?

ASSISTANT: Sure. May I know your good name?

USER: I am Timothy Green.

ASSISTANT: Please, wait.

USER: Sure.

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

USER: No problem. Thank you.

ASSISTANT: Thank you for availing us.