Hello. I am Carolyn Campbell.
user
Hello, How can I help you?
assistant
Please help me in changing my existing reservation, as my exam scheduled has been postponed. Could you help me in changing?
user
Sure. Please wait for a while.
assistant
Ok.
user
Thanks for waiting, There is no reservation found on your name.
assistant
Ok, no issues Thanks for the information.
user
Thanks for choosing us.
assistant