Hi, I am Gary Parker.
Hello, how can I support you?
I need to change my recent existing  reservation due to postpone of my wedding. Could you please help me in doing that?
Sure, I am happy to help you. Please wait for a moment, I will check the existing reservation on your name to change it.
Sure.
Thank you for being patient, There is no reservation found on your name.
No problem, thank you for your valuable information.
Thank you for reaching us.