Hello.
Hello, how can I assist you?
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 here to help you with that, can I know your good name to proceed further?
I am Samantha Jackson.
Sorry, we found no reservation on your given name.
That's ok, thank you for checking.
Thank you for reaching us.