Hello, myself Brian Walker.
user
Hello, Brian how can I aid you at this moment?
assistant
I want to cancel my reservation, as I got an urgent work in office, can you please help me?
user
Ok, I can help you out.Please wait a minute I'll check and let you know whether there is a reservation on your name or not.
assistant
Sure.
user
Ok, thank you for waiting Brian. Sorry, no reservation found on your name in my database.May be your ticket has been already cancelled.
assistant
That's ok, thank you for checking.
user
You are welcome.
assistant