Hello, I am Kevin Lopez.
Hello, how may I assist you?
 I already have an reservation to attend a meeting, due to some problems meeting place has been changed. So I need a few changes in my reservation.
Ok.
Can you please help me out in changing my recent reservation?
Sure, we are glad to help you. Wait for a moment, I will get back and revert to you.
OK.
Thank you for your valuable time. I have gone through all data, but there is no reservation found on your name.
OK, no problem.
Thank you for choosing us, have a gleeful day.