Hi,.
Hello.
I am Linda Jackson.
How can I help you out?
 I already have an reservation to attend at my meeting, due to some problems meeting place has been changed. So I need a few changes in my reservation.
Sure, I am here help you.
Please, help me in changing my reservation.
Ok.
Thank you.
Thanks for waiting, but sorry to say we did not find your name in the reservation list.
Ok, thank you for information.
Thank you for opting us.