An assistant executing at one or more processors is described that receives an indication of an initial user input that is indicative of an initial conversation between a user and the assistant. The assistant parses the initial user input for an initial command and identifies an initial reference to personal information not previously associated with a value that is specific to the user. The assistant generates a personal record associated with the user that stores an indication of the personal information. The assistant receives an indication of a subsequent user input that is indicative of a subsequent conversation between the user and the assistant. The assistant parses the subsequent user input for a subsequent command and identifies a subsequent reference to the personal information stored at the personal record. The assistant executes the subsequent command based on the personal information stored at the personal record.