Visitors to a Bed and Breakfast website generally have only a few simple questions they need answered.
Impress your reader with :

• Attractive accommodation
• Location
• Price

If the visitor likes the look, location and price of your B&B, his next question is arguably the most important of all :

• Do you have availability when I want to stay?

If your website answers this question clearly and accessibly you are already ahead of the competition, and your chances of the visitor making a booking on the spot are much higher.
It is no longer necessary for a guest to call a string of possible B&Bs to find out if they have a room for him - it is much more convenient simply to look up availability online.
If you don't provide this facility you will certainly lose bookings to a competitor who does.
Seek out a website solution provider who offers the best availability charts you can find.
Put yourself in the position of the potential guest.
How much fiddling around and clicking do you have to do to find the availability information you need? Check also that the charts are easily updated and that the process of inserting bookings is quick and simple - there is no need to over-complicate this.
Above all, once your charts are installed on the website, be absolutely scrupulous in keeping them bang up to date.
Nothing puts off guests more than finding that the room they thought was available - and perhaps set their heart on - is in fact already reserved for someone else.
The well-designed availability chart is also a useful tool for your back office administration.
At a glance you should be able to see which room is available and when - it can even replace the traditional paper calendar by the phone.
It's also a useful place to keep notes about guests such as names, dietary preferences and arrival times.