Hello, I am James Turner.
user
Hello, what service are you looking for?
assistant
Due to an emergency meeting, I want to change my reservation. Can you help me with it?
user
Sure, please wait while I get details of previously done reservation.
assistant
OK.
user
I am sorry to inform you that we don't have any reservation on your name.
assistant
No problem, thank you for the information.
user
Thank you.
assistant