Hello, Rebecca Martin is my name.
Hello, how may I assist you for the day?
I made a reservation earlier this week to give a seminar, but due to some technical issues it has been cancelled.
Ok.
Now,  I need to cancel it.
Ok, I will help you in this. Please, wait a minute.
Sure.
Thank you for waiting.
Fine.
There is  no reservation found on your name.
Ok, than you for your kind information.
Thank you for reaching us.