You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: Do you deal in flight reservations?

ASSISTANT: Yes, I am here to do so.

USER: If yes then please change the reservation, as I had to cancel and reschedule a business meeting in my office. I am Andrew Moore.

ASSISTANT: Sure Moore, wait a moment let me check the previous reservation.

USER: Ok, once complete please let me know.

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

USER: Ok, It is not a problem. Thanks for your help.

ASSISTANT: Welcome Moore.