1. A machine having a conversational system, said machine comprising: a system bus for communicating data and control signals received from said conversational system to a computer system in said machine; a vehicle data and control bus for connecting devices and sensors in said machine; a bridge module for connecting said vehicle data and control bus to said system bus; one or more respective machine subsystems coupled to said vehicle data and control bus connected to said computer system, said one or more respective machine subsystems having a respective user interface for receiving a voice command or input signal from a user for modifying a voice command set in said conversational system of said machine; a memory coupled to said system bus for storing one or more action command sequences learned for a new voice command, wherein said one or more action command sequences comprises at least one of: one or more voice commands, one or more actions performed on one or more physical interfaces of said one or more respective machine subsystems coupled to said vehicle data and control bus and a combination of said one or more voice commands and said one or more actions performed; and a central processing unit coupled to said system bus for executing said one or more action command sequences learned when said new voice command is spoken.