Hello.
Hello, how may I address you?
 As sudden change in my plan I want to cancel my recent reservation. Can you help me with that?
Sure, let me know your name.
My name is Jonathan Jones.
Ok, please wait for a while, I will check the reservation list and cancel the reservation.
Sure.
Thanks for waiting, no reservation found with your name to cancel the reservation.
Ok, Not an issue. Thank you.
Thanks for opting us.