You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I would like to change my reservation, can you please help me out with that?

ASSISTANT: Sure, may I know your name?

USER: Myself Larry Edwards.

ASSISTANT: Please wait a moment.

USER: Sure.

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

USER: That's ok, no problem. Anyway thank you for checking out.

ASSISTANT: Thank you.