I recently booked DPS with UA miles:
SFO-UA-LAX-TG-BKK-TG-DPS (final)
DPS-TG-BKK-TG-ICN (stop)
ICN-OZ-SFO
Since this was business class, and I didn't have time to train a CO agent in the difference between O and I, so I just called UA 1K and wrapped it up in a few minutes.