Hello.
Hello, how may I help you today?
Can you please change my active reservation as my  meeting was changed?
Sure, we are here to help you.
Thank you.
May I know your name to proceed further?
Patrick Gonzalez.
Ok, please wait a moment.
Ok.
Thank you for your time, sorry no reservation found on your name.
Ok, no problem. Thank you.
Thank you for availing us.