Failed Booked Session does not Delete

I had a session booked for T72 but the roof was closed and the scope offline.

I could have cancelled but when it was offline but let it stay to see what happened.

The booked session passed but did not delete. Is this because the booking agent cannot talk to the telescope?

I would be better if a session does not start for any reason it was deleted and points refunded but perhaps the telescope needed to be online