AA 3880 then AA 1502 at Charlotte
Greensboro → Charlotte → Nashville
Timetable, Charlotte time
19:55AA 3880 from Greensboro at the gate
19:50AA 1502 to Nashville leaves the gate
23 h 55 apart on the timetable, overnight
AA 1502 leaves 23 h 55 after AA 3880 arrives on the timetable: more than half a day, so not a connection we count.