Hello.
Hi. How can I help you?
I'm Carolyn Campbell.
Mr Carolyn Campbell, may I help you?
I want to go on a vacation, but unfortunately the trip got postponed.can you please change my existing reservation?
Sure, just a second please.
OK.
I am sorry, Mr Carolyn Campbell I cannot find any reservation on your name.
OK, that's not a problem.
Thank you, have a nice day.