Hi, myself Stephen Young.
user
Hello, how can I aid you today?
assistant
I want to change my existing reservation because my scheduled meeting got postponed.
user
Ok, please hold on a while. I will check the status and change as per your request.
assistant
Ok.
user
Sorry, there is no reservation found on your name to change. Thanks for contacting us, have a good day.
assistant
Ok, thanks for your kind response.
user