You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you?

USER: My business meeting has been postponed, could you please help me with changing my recent reservation?

ASSISTANT: Sure, may I know your good name please?

USER: I am Kenneth King.

ASSISTANT: Sorry, there is no reservation found on your name to change.

USER: That's ok, no issues. Anyways, thank you for the information.

ASSISTANT: Thank you for approaching us.