1. A method comprising: receiving speech from a user; identifying, via a processor, the user from the speech, to yield a user identification; and applying a personalized natural language generation model while performing, as part of a dialog system, one of automatic speech recognition and natural language generation, wherein the personalized natural language generation model comprises a personality independent quotation lattice organized using a stylistic analysis of the personality independent quotation lattice, personality independent attributes, personality dependent attributes, and speakers identified within a literary narrative.