DL 215 then DL 4137 at Atlanta
Rome → Atlanta → Shreveport
Timetable, Atlanta time
15:51DL 215 from Rome at the gate
15:40DL 4137 to Shreveport leaves the gate
23 h 49 apart on the timetable, overnight
DL 4137 leaves 23 h 49 after DL 215 arrives on the timetable: more than half a day, so not a connection we count.