1. An apparatus for an interactive dialog system, the apparatus comprising: a classification block configured to select, based on at least one fact or profile input, an emotion type code associated with an output statement, the emotion type code specifying one of a plurality of predetermined emotion types; and a text-to-speech block configured to generate speech corresponding to the output statement, the speech generated to have the predetermined emotion type specified by the emotion type code; wherein the at least one fact or profile input is derived from usage of a mobile communications device implementing the interactive dialog system.