Hi.
user
Hello, how may I help you today?
assistant
 I made a reservation earlier this week to give a seminar, but my seminar has been postponed. Can you please help me in changing my reservation?
user
Sure, we are here to help you.
assistant
Thank you.
user
May I know your good name please?
assistant
Shirley Hall.
user
Please wait a minute.
assistant
Ok.
user
Sorry, there is no reservation found on your name to change.
assistant
No issue. Thank you for the information.
user
Thank you for choosing us.
assistant