At a successful restaurant, they don't care about reporting, data analysis, or who sat in what seat, just that all seats were occupied. That is already accounted for by looking around the rounm and by the numbers at the end of the night. The reservations are for the seating not the take.
If there is any data analysis it has to do with where the next restaurant can be built.
Not true at all. Restaurants definitely care about things like total covers, check average, profit per seat, turnaround time, etc... There's massive profit different between say, 1 turn and 2.5 turns. Simply filling every seat once per night isn't good enough for a lot of restaurants.
If there is any data analysis it has to do with where the next restaurant can be built.