Hi.
user
Hello. How may I assist 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, may I know your name?
assistant
Emma Young.
user
Please wait a moment.
assistant
Ok.
user
Sorry, there are no active reservations on your given name to change.
assistant
No issue, Thank you for the information.
user
Thank you for reaching us.
assistant