An apparatus, comprising: a storage device; and logic, at least a portion of the logic implemented in circuitry coupled to the storage device, the logic being configured to: receive audio data including speech of a user, the speech of the user relating to a user issue; extract one or more features from the received audio data, the one or more features including a vocabulary of the speech of the user; compare the one or more extracted features from the received audio data to features associated with a plurality of user group models; determine a user group model to assign to the user from the plurality of user group models based on the comparison of the one or more extracted features from the received audio data and the features associated with the plurality of user group models, wherein the determined user group model is configured to specify one or more menu options provided to the user in a generated responsive audio data and to specify a vocabulary used to describe the one or more menu options provided to the user in the generated responsive audio data; generate the responsive audio data in response to the received audio data based on the determined user group model assigned to the user; and provide the generated responsive audio data to the user. a storage device; and logic, at least a portion of the logic implemented in circuitry coupled to the storage device, the logic being configured to: receive audio data including speech of a user, the speech of the user relating to a user issue; extract one or more features from the received audio data, the one or more features including a vocabulary of the speech of the user; compare the one or more extracted features from the received audio data to features associated with a plurality of user group models; determine a user group model to assign to the user from the plurality of user group models based on the comparison of the one or more extracted features from the received audio data and the features associated with the plurality of user group models, wherein the determined user group model is configured to specify one or more menu options provided to the user in a generated responsive audio data and to specify a vocabulary used to describe the one or more menu options provided to the user in the generated responsive audio data; generate the responsive audio data in response to the received audio data based on the determined user group model assigned to the user; and provide the generated responsive audio data to the user. receive audio data including speech of a user, the speech of the user relating to a user issue; extract one or more features from the received audio data, the one or more features including a vocabulary of the speech of the user; compare the one or more extracted features from the received audio data to features associated with a plurality of user group models; determine a user group model to assign to the user from the plurality of user group models based on the comparison of the one or more extracted features from the received audio data and the features associated with the plurality of user group models, wherein the determined user group model is configured to specify one or more menu options provided to the user in a generated responsive audio data and to specify a vocabulary used to describe the one or more menu options provided to the user in the generated responsive audio data; generate the responsive audio data in response to the received audio data based on the determined user group model assigned to the user; and provide the generated responsive audio data to the user. <EOS>