You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I serve you today?

USER: I would like to change my reservation as I am leaving for abroad, can you please help me out?

ASSISTANT: Sure, I'll try to help you in changing an existing reservation. May I know your name the check the reservation status?

USER: Check the reservation on the name Donald Edwards.

ASSISTANT: Thank you for providing your name, please wait a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, unfortunately there is no reservation found by this name.

USER: Ok no problem, thank you for checking the reservation.

ASSISTANT: Thank you for approaching us.