Availability Calendar - re-work/design

We have an availablitity calendar on our website. We would like this to have a newlook and to also add a small new function. We have an idea of the look that we want for the calendar.(Image will be sent for your viewing if selected to bid) The new function, our users can at present, add the dates that they have booked, but we would like this to show as follows: The start date and the end date the user inputs to be shown as half days booked. And then if the half day is selected again and marked as booked then it is shown as a full day booked. We know this function is available on many websites, but we cant find the design we want with the same features. Our website address and a link to one of our adverts with our current calendar on will be sent to those whom we select to bid. Payment will be released upon completion and the work inspected by our IT dept. So anyone asking for milestones need not bid. If you need assurance that you will receicve payment once you complete the project, Please see our feedback.