Direct Booking Website Calendar: change the interface

The calendar interface is like none I’ve seen anywhere online. From a user standpoint, the minute they click the “check-in” field, and the calendar pops-up, it immediately looks like the month is blocked. (dates are grayed out) From there, users don’t even bother trying to click on the check-out field. In order to actually see how many days you can stay, you HAVE to click on the check-out date. We get so many complaints from potential guests stating our dates are blocked, because they never click on the check-out date. It drives potential direct booking guests away. It should function like any other calendar online, and/or simply reflect what the calendar looks like in terms of open days when we view the property calendar. If they try choosing less days than a minimum, it should then generate the error of min days not met.