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