24. The system of claim 22 , wherein: the one or more crowd sourcing information sources are identified from a set of crowd sourcing information sources.
22. A system, comprising: one or more processors; and memory storing instructions, the instructions, when executed by the 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.