I am working on SharePoint 2016 and Nintex 2016.
I created a booking form with FromDates and UntilDates which needs to check if the selected dates have already been selected and if the dates fall within the range of already existing dates. The scope is to avoid double-booking!!
Would need to demonstrate the end result before the payment is made.
I selected Micro Project but willing to re-negotiate for higher cost if the project can be achieved as desired.