19. The non-transitory computer-readable medium of claim 13 , wherein: more than one answer is obtained from the one or more crowd sourcing information sources; and the more than one answer is ranked in accordance with predetermined criteria.
13. A non-transitory computer-readable medium storing instructions, the instructions, when executed by one or more processors, cause the processors to perform operations comprising: receiving a user request, the user request including at least a speech input and seeks an informational answer or performance of a task, wherein: the user request is associated with a detected failure to provide a satisfactory response to the user request; and one or more crowd sourcing information sources relevant to the user request are queried in response to detecting the failure to provide a satisfactory response to the user request; and generating a response to the user request based on the one or more answers obtained from querying the one or more crowd sourcing information sources.