Hello, I am Charles Mitchell.
Hello, how may I assist you?
I would like to change my existing reservation due to postpone of my conference at Charlotte. Could you please help me?
Sure, I will help you with that. Please wait for a moment.
Sure.
Thank you for waiting, sorry there is no reservation found on your name.
No problem, thank you for the information.
Thank you for visiting us, have a nice day ahead.