DL 1012 then DL 3507 at Atlanta
Memphis → Atlanta → Shreveport
Timetable, Atlanta time
12:54DL 1012 from Memphis at the gate
11:00DL 3507 to Shreveport leaves the gate
22 h 06 apart on the timetable, overnight
DL 3507 leaves 22 h 06 after DL 1012 arrives on the timetable: more than half a day, so not a connection we count.