UA 4746 then UA 6086 at Houston
Nashville → Houston → Shreveport
Timetable, Houston time
11:02UA 4746 from Nashville at the gate
07:00UA 6086 to Shreveport leaves the gate
19 h 58 apart on the timetable, overnight
UA 6086 leaves 19 h 58 after UA 4746 arrives on the timetable: more than half a day, so not a connection we count.