Hello, I am Betty Martinez.
user
Hello, what can I do for you?
assistant
I want to change my existing reservation due my meeting got postponed. Can you help me in this?
user
Sure, please wait for a while. I will check with your existing reservation.
assistant
Ok.
user
Thank you for waiting, there is no existing reservation found on your name.
assistant
It's ok, not a problem.
user
Thank you for opting us to change your existing reservation.
assistant
Thank you for your service.
user