Hi.
user
Hello, how can I help you?
assistant
I am Sandra Scott, I want to change my recent reservation because program has been postponed, can you help me to change this reservation?
user
Please wait a while.
assistant
Sure.
user
Sorry to say, there is no reservation on your name in our database.
assistant
That's fine, thanks for your information.
user
Thank you for opting us.
assistant