Hello, Mary Hill here.
user
Hello, how can I help you?
assistant
I want to change my reservation due to office work, can you help me?
user
Please wait a while.
assistant
Ok, please check with my previous booking.
user
Sorry to say, there is no reservation on your name in our database.
assistant
Oh! That's sad to know, thank you for checking anyways.
user
Thank you for opting us.
assistant