Hi,.
user
Hello,.
assistant
I am Karen Moore.
user
How may I help you?
assistant
 I made a reservation earlier this week to give a seminar, but my seminar has been postponed. Please, help me in changing my reservation.
user
Sure, please be on hold.
assistant
Sure.
user
Thank you for your time. Sorry, no reservation found in your given name.
assistant
Ok, thank you.
user
Thank you for reaching us.
assistant