How restaurants deal with no-shows

Here's an article from eater.com with interesting details on the different marketplace institutions being tried to limit no-shows at high end restaurants...from abolishing reservations, to overbooking, to credit card reservations with penalties, to a theater-ticket model.  How Restaurants Can Deal With No-Show Diners

HT: Neil Dorosin (who points out that somewhat similar issues arise in school choice, since schools also suffer from no-shows when the school year begins)