I realize rewriting code can be arduous, but, UNTIL we can get a calendar with something (colors or cross-out lines as others have suggested) to delineate which dates are available vs unavailable, can we at least change the text after a user clicks "search"? Right now, if one of my units is unavailable, the page returns with the text "No Results," which makes people think my units aren't even operating. Instead, and for the time being until this is fixed, can the text say "Dates Unavailable"? At least the user is cued to modify their dates and not click away from the page entirely.

Yes please, just a simple highlight on the background of the dates would improve visibility and love the siggestion of a written prompt of what to click to improve UX.

A written prompt next to the 'clear' button would also be a big help. saying 'click your arrival date' then 'click your departure date'

I have had a few guests. very confused by the direct booking website. The booking calendar is a little unclear, it's hard to see the crossed out dates. Would really help to have some bold green colours on available dates and red on booked dates (or similar)