12. The system of claim 1 , at least one of the decision model and the queuing model further describes a utility of a dialog action a given an operator state O and system state S as approximately decomposed as follows: 
 u(a,S,O) u(a,S)+u(a, O).
12. The system of claim 1 , at least one of the decision model and the queuing model further describes a utility of a dialog action a given an operator state O and system state S as approximately decomposed as follows: 
 u(a,S,O) u(a,S)+u(a, O). 13. The system of claim 12 , if a=d, or dispatch to an operator, then, a cost function is described as: 
 c ( d,SO )≅CustCost·( t+W )+OpCost· z wherein t is a time a caller has spent in an automated system, and W is a “dwell time,” which includes a time waiting in line and time being served.