1. A method for determining turn order between a user and an interactive turn-taking spoken dialog system based on a result, the method comprising: receiving speech; and while continuing to receive the speech: identifying a starting point associated with the speech; identifying content of the speech received so far, to yield identified content; predicting a stability of the identified content; and identifying an end point associated with the speech, wherein the end point is a pinch node in a content lattice; and returning, via a processor, a result based on the stability between the starting point and the end point.