Your customers book from the form on your website, without calling. They choose date, time and party size, and only see the slots you actually have free based on your shifts and tables.
If you have several areas (for example dining room and terrace) with tables open to online booking, guests can pick an area.
They receive a confirmation email in the language they booked in, plus a link to cancel or change the booking. You see everything in Dashboard > Reservations, in real time.
Online bookings are not capped on any plan. With Pro you can require a card guarantee against no-shows and offer a waiting list when you are full.