15. A computer program product, comprising: a non-transitory processor readable medium having processor executable code embodied therein to provide voice interaction in a vehicle, the processor readable medium having: processor executable program code to receive a voice-based query from a user in the vehicle, processor executable program code to determine an emotional state for the user based on a detected valence and arousal level associated with the voice-based query, processor executable program code to derive a text-based query from the voice-based query, processor executable program code to search, using the text-based query, a help database for at least one response to the voice-based query, and processor executable program code to provide the at least one response to the user in the form of voice-based assistance in accordance with the emotional state of the user.
25. The computer program product of claim 15 , wherein at least some of the processor executable program code is executed by one or more processors in the vehicle.