5. The system of claim 4 , the decision model is adapted to dispatch a call to an operator when an expected utility of d, given a state of the operator O and call routing system S, exceeds that of a dialog action a and described by the following equation: 
 ∀ a≠d [ EU ( d¦S,O )> EU ( a¦S,O )].
6. The system of claim 5 , the decision model with respect to a dispatch d, applies a definition of conditional probability to obtain: UE ⁡ ( d ) = ∑ S ⁢ ⁢ ∑ O ⁢ ⁢ P ⁡ ( S , O ❘ d ) ⁢ u ⁡ ( d , S , O ) ⁢ EU ⁢ ⁢ ( d ) ⁢ Σ ⁢ ⁢ Σ where P(O|S, d), is a likely state of a call center queue; P(S), is a likely outcome of a call routing system; and u(d, S, O), is a utility of dispatching a call when the one or more operators may or may not be busy and the automated call routing system may or may not be failing.