Hi.
Hello, how may I serve you today?
Could please change my existing reservation due to postpone of my trip?
Sure, we are here to help you.
Thank you.
May I know your name please?
My name is David Carter.
Ok, please wait for few minutes.
Sure.
Sorry to inform you that, we did not find any reservation on your name.
Not a problem, thank you for checking.
Thank you for choosing us.