Hello, this is Charles Davis.
Hello, how may I help you today?
I want to change my existing reservation due to postpone of my exams. Can you help me in that?
Sure, I am mirthful to help you to change your reservation.
Thank you.
Please wait a moment.
Ok.
Sorry, I didn't find any reservation on your name in our database.
Ok, it is not an issue. Thank you for your quick response.
Thank you reaching us, have a nice day.