If you have Artisan Riding and you can't get the quest from him, most likely you already did that part. Head to Dragonmaw Fortress and see if a) there's any quests there (the next part of the chain is from a dragon flying in the air overhead) or b) you transform into a fel orc, in which case you've already finished that part and can head to Netherwing Ledge to do the dailies.