Plugin allows you to manage reservations for your restaurant business. This plugin can help to receive reservations from clients online. Your clients will be able to see available space at specified time, and if it’s available, client is able to make a table reservation. Initially you need to setup number of persons that can book at one time, working times and restaurant details. Plugin automatically detects free seats and if available reservation is instantly confirmed. There is a possibility to control every incoming reservation as well in manual mode.

Demo; https://codecanyon.net/item/redi-restaurant-booking-plugin-for-wordpress/19158759