Hello, my name is Katherine Williams.
user
Hello, how can I provide assistance to you?
assistant
I want to change my existing reservation due to postpone of my seminar.
user
Ok. I will help you in changing the reservation.
assistant
Ok.
user
Please wait a moment, I will check the previous reservation with your name.
assistant
Sure.
user
I want to inform you that there is no reservation found with your name.
assistant
No problem, thanks for your information.
user
Thank you for consulting us.
assistant