Hello.
Hello, how can I help you at present?
Due to sudden change of my business meeting because of some technical problem, I need to change my reservation so can you help me with that?
Sure, I am glad to help you.
Thank you.
On whose name, you have made the reservation earlier?
I am Brian Thomas.
Ok, please wait for a while.
Sure.
Sorry to say that, no reservation was found on your name to change.
OK, no problem. Thanks for the information.
Thank you for choosing us.