AA 5657 then AA 5506 at Charlotte
Cincinnati → Charlotte → Memphis
Timetable, Charlotte time
15:22AA 5657 from Cincinnati at the gate
12:22AA 5506 to Memphis leaves the gate
21 h apart on the timetable, overnight
AA 5506 leaves 21 h after AA 5657 arrives on the timetable: more than half a day, so not a connection we count.