DL 1007 then DL 3505 at Atlanta
Washington National → Atlanta → Shreveport
Timetable, Atlanta time
21:41DL 1007 from Washington National at the gate
19:05DL 3505 to Shreveport leaves the gate
21 h 24 apart on the timetable, overnight
DL 3505 leaves 21 h 24 after DL 1007 arrives on the timetable: more than half a day, so not a connection we count.