Hello.
user
Hello, how may I aid you?
assistant
I need to cancel my recent reservation due to my exam postponed, can you please help me out?
user
May I know your name?
assistant
Sure, my name is Paul Moore here.
user
 I have checked in reservation list to cancel your ticket, but could not find any reservation with your name.
assistant
Ok, not an issue.It might be cancelled before.
user
That's ok, thank you.
assistant
Thank you for your information.
user