Hello. Mark Wright here.
user
Hello, how may I help you?
assistant
I would like to change my existing reservation because my seminar was postponed. Can you help me for that?
user
Sure. Wait for moment.
assistant
Ok.
user
Sorry Mark, there is no reservation with your name.
assistant
Ok, that's fine.
user
Thank you to visit us.
assistant
Thank you for your services.
user