I'm sure there is an easy alternative, to set the house name to the player's account name. It would be the same as naming your character in an average game, then whenever dialog appears that they are included in, their name will appear. It may even be used with events, I'm not too sure.
For example, many people make RPGs where you name your character manually. Lets say the character's name is Bob

Whenever 'Bob' speaks, it'll have> Bob: (Dialog here) And yea, you get the idea. The house name should most definitely work the same way. If you're not too sure about it, I've come across quite a lot of posts about it, so it shouldn't be too difficult to find.