Hello.
Hello, how may I support you today?
Due to some urgent meeting, I am going to change my existing reservation. Can you please help me for this?
Sure, we are glad to help you.
Thank you.
For changing, we need your good name. Please provide it.
Myself Jeffrey Moore.
Please wait for a while.
Sure.
Sorry to say that, there is no active reservation found on your name to change.
Not a big issue,  anyhow thank you very much for your information.
Thank you for communicating with us.