Hello.
Hello. How can I help you?
I would like to change my existing reservation, which is done recently. Can you please help me out?
May I know your name please?
Thank you for considering my request. Myself Michelle  Carter.
Please wait a while.
Sure, I will wait for your response.
Sorry to say, there is no reservation on your name in our database.
Not a big problem, anyway thank you for the information.
Thank you for opting us.