I am not sure if i should post it here. But didn't knew what would be the correct place.

Any way, thinking to non-rev to Bangkok(BKK) on Delta. The route goes from Atlanta-Narita-BKK.

The layover shows about 2 hours. I am guessing it is the same aircraft that refuels and departs for BKK or is it plane change?

So as a Non-rev if you get a seat from ATL-Narita. Do you need to check with gate to get seat for Narita-BKK or the seat is assigned for the entire route is assigned in Atlanta.

Thank you