I attempted to book SEA-SFO-NAN-TVU on the Alaska website today (SFO-NAN in J, everything else in coach). Would not ticket. Tried calling in, but the agent couldn't see NAN-TVU on his end. I dropped the last leg and just booked SEA-SFO-NAN for now. Of course, NAN-TVU doesn't appear on its own in award search. Now the thing is, I have booked awards all the way to TVU in the past. What gives? Any tips?