Hello, I am Cynthia Hernandez.
user
Hello, how may I assist you?
assistant
I need to alter my existing reservation, as my exam scheduled has been postponed. Please help me in changing?
user
Sure, please wait a moment.
assistant
Ok.
user
There is no reservation on your name.
assistant
Ok, no issues. Thanks for your service.
user
Thank you so much for picking us.
assistant