Hello.
user
Hello. How can I help you?
assistant
I made a reservation earlier this week to give a seminar, but my seminar has been postponed. Can you please change my existing reservation?
user
Sure. may I know your name please?
assistant
My name is Shirley Perez.
user
I am sorry no reservation found on your name.
assistant
No problem, thank you for your information.
user
Thank you for choosing us.
assistant