I'm new to C3 and I don't understand a little bit, I need a little help, for example how to do it? For example, I talked to an NPC once (there was one unique dialog with it) then after a couple of minutes I'm talking to the same NPC again (but it's already talking to me in another dialog) whether there's a function that could determine that a particular "key" dialog was finished so that it wouldn't repeat itself.