4. The computing device of claim 1 , wherein to modulate the natural language response comprises to modulate the natural language response to exhibit an emotional state opposite the estimated emotional state of the user request.
4. The computing device of claim 1 , wherein to modulate the natural language response comprises to modulate the natural language response to exhibit an emotional state opposite the estimated emotional state of the user request. 5. The computing device of claim 4 , wherein: the estimated emotional state comprises an estimated dominance level of the user request, wherein the estimated dominance level has a predetermined relationship to a baseline dominance level; and to modulate the response comprises to modulate the natural language response to exhibit a dominance level opposite the estimated dominance level of the user request.