Hello.
Hello, how may I assist you today?
 I made a reservation earlier this week to give a seminar, but my seminar has been postponed. Can you please help me in changing my reservation?
Sure, we are here to help you.
Thank you.
Can I have your name to proceed further?
I am Jennifer Baker.
Ok, please wait a moment.
Sure.
Thank you for your time, sorry no reservation found on your name.
That's ok, not an issue. Thank you for checking.
Thank you for opting us.