Hello,. I am William Collins.
Hello, how may I aid you?
I want to change my existing reservation due to postpone of my exams. Can you please aid me with this?
Sure, we are here to help you.
Thank you.
Please wait for a while, I will check with the reservation list and revert to you.
Sure.
Thank you for waiting, No reservation was found on your name.
Ok, not an issue. Thank you.
Thank you for choosing us.