AA 6060 then AA 2813 at Charlotte
Chattanooga → Charlotte → Boston
Timetable, Charlotte time
06:33AA 6060 from Chattanooga at the gate
18:40AA 2813 to Boston leaves the gate
12 h 07 apart on the timetable
AA 2813 leaves 12 h 07 after AA 6060 arrives on the timetable: more than half a day, so not a connection we count.