AA 5572 then AA 5984 at Charlotte
Lexington → Charlotte → Florence
Timetable, Charlotte time
15:02AA 5572 from Lexington at the gate
13:05AA 5984 to Florence leaves the gate
22 h 03 apart on the timetable, overnight
AA 5984 leaves 22 h 03 after AA 5572 arrives on the timetable: more than half a day, so not a connection we count.