Quote Scheduling

We have been desperately trying to implement a scheduling solution into our quote request form, that would allow customers to select a day and time of day at which they would like us to come look at their property to get the info needed to send them a quote. It seems really simple, but no existing free or paid plugin has been able to accomplish this.

Ideally there would be a date selector on the quote request form that would only have days and times available to select that have been input by us as available.