Hello.
Hello, how may I aid you at present?
I would like to change my reservation as I am leaving for delegates meet, can you please help me out?
Sure, I am here to help you to change it. Ok,  May I know your good name please?
Patrick Nelson here.
Ok, Please wait for a moment.
Sure.
Sorry to inform you that, there was no reservation found on your name to change it.
Ok no problem, thank you for your services.
Thank you for approaching us.