Hello.
Hello, how may I aid you today?
As my visit to Getty center at Los Angels  has been postponed. Help me in changing my resent reservation.
Sure, can I have your name please?
I am Gary Evans.
Ok, please wait for a moment I will get back to you.
Sure.
Thanks for waiting, we have not found any flight reservation with your given name.
No problem.
Thank you for choosing us.