InfoPath Dev

I have created a Course Registration form in InfoPath 2013 from a Calendar list in SharePoint 2016.  On this form, I have two cascading drop downs, Course Name and Start Date/Time. On the Course Name dropdown I would like to see only today's and future courses.  

I have created a Course Registration form in InfoPath 2013 from a Calendar list in SharePoint 2016.  On this form, I have two cascading drop downs, when the Course Name is selected, all scheduled dates and times for the course are listed in the Start Date drop down.  The Date Time is appearing as 2019-02-22T11:00:00. ...