Hello.
Hello, how may I help you?
Due to inconvenience of my work, I want to change my reservation. Can you please help me for that?
Sure, I am here to help you for this. May I know your name please?
My name is Joseph Davis.
Please wait for a while.
Ok, I will wait.
Sorry for inconvenience, no reservation is found under your name to change.
Anyway, thanks for the information.
Thank you very much for approaching our agency.