1. A task manager for an information system of a vehicle comprising: a computer configured to receive at least one of (i) input representing a query or command to the information system and (ii) input representing an operating state of the vehicle; generate two or more audio output tasks to be played by an audio output based on the input, each of the audio output tasks including data representing at least one spoken word, an event after which to play the audio output task and a priority parameter; schedule the audio output tasks for play based on the events and priority parameters; and play the audio output tasks based on an occurrence of the events and a comparison of at least some of the priority parameters.