Hi.
user
Hello, how can I aid 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, I am here to help you. Can you please mention your name?
assistant
Myself Sarah Gonzalez.
user
Sorry, no reservation found with your given name.
assistant
It's ok, thank you.
user
Thank you for choosing us.
assistant