AA 1992 then AA 5987 at Charlotte
St Louis → Charlotte → Gainesville
Timetable, Charlotte time
13:14AA 1992 from St Louis at the gate
12:30AA 5987 to Gainesville leaves the gate
23 h 16 apart on the timetable, overnight
AA 5987 leaves 23 h 16 after AA 1992 arrives on the timetable: more than half a day, so not a connection we count.