The systems and methods described herein may recognize natural language utterances that include queries and/or commands and execute the queries and/or commands based on user-specific profiles. The systems and methods described herein may include a complete speech-based information query, retrieval, presentation and command environment that makes significant use of context, prior information, domain knowledge, and the user-specific profiles to achieve a natural environment for one or more users making queries or commands in multiple domains. Through this integrated approach, a complete speech-based natural language query and response environment can be created and tailored to specific users. For example, the systems and methods described herein may create, store, and use extensive personal profile information for different users, thereby improving the reliability of determining the context and presenting the results that the specific users may expect for a particular question or command.