Hi.
Hello, how may I help you?
 I made a reservation earlier this week to give a seminar, but my seminar has been postponed. Can you please help me in cancellation?
Sure, may I know your name please?
I am Ruth Green.
Ok, please wait for a moment.
Sure.
Sorry, there was no reservation found with your given name.
Ok, no problem. Thanks for the information.
Thank you for opting us.