1. In a speech-enabled service, a method for creating customized files containing personalized command variants relating to the speech-enabled service, the method comprising: accessing a context file relating to the speech-enabled service, the context file containing a natural language exemplar associated with a desired action and a variant associated with the natural language exemplar initialized by a developer of the context file; creating a customized variant for the desired action, wherein the customized variant is customized by a user and personal to the user; correlating the customized variant with the natural language exemplar; and storing the customized variant in a customized context file that is stored in a variant database in a communications network, wherein the variant database stores a plurality of customized context files for each one of a plurality of users, wherein the customized context file is used when the user uses the speech-enabled service.