Hello, I am Barbara Robinson.
Hello, how may I assist you?
As part of my schedule I make a reservation earlier to attend client meeting. Unfortunately meeting got delayed on week. So I want to change my existing reservation. Can you be my helping hand?
Sure, please wait a moment meanwhile I'll check the details of your reservation.
OK.
Sorry Barbara, in my database I didn't found any details regarding your reservation.
It's ok, not a problem. Thank you for your service.
Thanks for reaching us. Have a nice day.