17. The method of claim 15 , wherein obtaining the value for the variable includes utilizing a goal-based dialog.
15. The method of claim 14 , further comprising: identifying a variable for performance of the first task; obtaining a value for the variable by at least one of (i) analyzing contextual information that is related to at least one of the conversation or the user or (ii) causing the user to be prompted for the value of the variable; and updating the task map by mapping the value of the variable to the second task.