Even if you spoke to one or more of the Honkies before the Dock Master. Can't remember exactly but I think I had issues with the dialogue options not appearing for some of them as well. I went to the DM then back to the Honkies & got it for all of them. As I said though they don't actually leave town after, they just run off to a different area. Or is it possible you have already completed the quest? In your quest log what does it tell you to do? If it tells you to return to Kira for the reward, it's done - even if you didn't get all the dialogue options