Hello. I am John Martinez.
user
Hello, how may I aid you?
assistant
I need to alter my reservation, as my exam scheduled has been postponed. Please help me in changing?
user
Sure, I am here to help you. Please wait for a few minutes.
assistant
Ok.
user
Thank you for your patience, we did not find any reservation on your name to change it.
assistant
Ok, no issues. thank you.
user