Hello.
Hello, how may I aid you today?
I want to change my existing reservation, can you please help me with this?
Sure, we are here to help you. May I know your name to proceed furher?
My name is David Wilson.
Ok, please wait a moment.
Sure.
Thank you for your time, sorry no reservation found on your name.
No problem, thanks for your information.
Thank you for opting us.