Hi, this is Robert Lee.
Hello, how can I help you?
I want your help in changing an existing reservation on my name.
Sure, I am happy to help you and may I know your name please? Wait a moment, I will check the existing reservation and get back to you. Thanks for waiting, there is no existing reservation found with your name.
OK, no issue. Thanks for the information.
Thank you for choosing us, Have a nice day.