A device may be configured to provide a query to a user. Voice data may be received from the user responsive to the query. Voice recognition may be performed on the voice data to identify a query answer. A confidence score associated with the query answer may be calculated, wherein the confidence score represents the likelihood that the query answer has been accurately identified. A likely age range associated with the user may be determined based on the confidence score. The device to calculate the confidence score may be tuned to increase a likelihood of recognition of voice data for a particular age range of callers.