Hello.
Hello, how can I assist you today?
 I made a reservation earlier this week to give a seminar, but my seminar has been postponed. Can you aid me to change?
Sure, we are here to help you. To proceed for changing, we need your name.
Sure, my name is Ashley Lewis.
Ok, please wait for a while.
Sure.
Thank you for your time, we did not find any reservation on your name.
That's Ok, thanks for your help.
Thank you for choosing us.