You can use the KeepMeBooked booking and availability widget to display live availability on your Bed & Breakfast website. Guests can see when you are full, and when you have availability.

Guests can click on an available date, select the number of guests and number of nights and they'll then see a list of available rooms.

They can select a room and book online. You can specify whether to take a deposit (and how much), and can customise the colors and layout of the live availability widget.