Nope that didn't work, i get the speech bubble but when i click on the orc no dialog is initiated. I thought the the default dialog field should be left blank btw if you're using a global character.
Did you compile the story script? For your effects to be taken into consideration, you need to open the Story window ( the [S] at the top) and press F7.
The template module I have put has a working dialog, use that as a reference.
Also, your character's alignment is Evil NPC.
change that to Neutral NPC or Good NPC.
Also I saw in the console "Jack has no alignment" make him Hero.