Hi.
user
Hello. How may I aid you today?
assistant
My name is William Martinez. My holiday trip has been postponed, so I would like to change my existing reservation.
user
Ok. I will help you, please give me a moment.
assistant
Ok.
user
There is no reservation on your name. Sorry for inconvenience.
assistant
That's fine, thank you for your help.
user
Thank you for reaching us.
assistant