AA 5838 then AA 2344 at Charlotte
Florence → Charlotte → St Louis
Timetable, Charlotte time
07:29AA 5838 from Florence at the gate
07:05AA 2344 to St Louis leaves the gate
23 h 36 apart on the timetable, overnight
AA 2344 leaves 23 h 36 after AA 5838 arrives on the timetable: more than half a day, so not a connection we count.