Plenty of restaurant websites are powered by WordPress. We have already covered plenty of themes and plugins that give restaurants a professional makeover. The Visual Restaurant Reservation plugin allows you to create a visual reservation system for your site. It lets you manage max number of seats at each table and # of tables available.
Visual Restaurant Reservation comes with multiple attractive layouts. Your visitors will be able to choose the shape and type of booking that works for them and the date for their reservation. Once they enter their name and phone number, you will be able to call back to finalize the booking.
GoGetLab is behind this script. You can find out more about it here.