Availability lives in a notebook, a phone and somebody's memory. Two bookings land on the same slot and the customer finds out first.
Selling and scheduling that holds up when real customers arrive.
The situations businesses are actually in when this turns out to be the right shape.
Availability lives in a notebook, a phone and somebody's memory. Two bookings land on the same slot and the customer finds out first.
Two kinds of buyer, two kinds of price, and one shop that has to serve both without showing either the other's terms.
People arrive, choose, and stop. The checkout asks for something they do not have to hand, or asks for it on a phone where it cannot be typed.