AA 2002 then AA 1502 at Charlotte
Des Moines → Charlotte → Nashville
Timetable, Charlotte time
10:30AA 2002 from Des Moines at the gate
23:13AA 1502 to Nashville leaves the gate
12 h 43 apart on the timetable
AA 1502 leaves 12 h 43 after AA 2002 arrives on the timetable: more than half a day, so not a connection we count.