A lot of new users get confused with the notion of a 'Quest'. Like here, your logic is 'This isn't a dark brotherhood questline, i just want some dialogue!'
The fact is that a 'quest' is really just a collection of actors, aliases, scripts, and dialogue that are related somehow. If you want to put some dialogue in the game, you need a quest, if you want two npc's to talk to each other, you need a quest, if you want the player to go to a dungeon and recover an artifact, guess what? You need a quest.
Don't let all the tabs and options in quest forms scare you. There is a lot of stuff you can do with a quest, but you don't have to use all of it. Not all quests show up in your quest log. Many don't even have objectives or names.
Bottom line: Get used to quests. If you want to add anything to the game, chances are you need to create a new quest.