1. A method for improving speech recognition, comprising: storing a table, in a dialog manager module, the table including a plurality of information items and a corresponding list of improbable values for each of the plurality of information items; receiving a plurality of recognized ordered interpretations from an automatic speech recognition (ASR) engine, the plurality of recognized ordered interpretations each including a plurality of received information items; and comparing a value of one of the received information items for a first recognized ordered interpretation to the table to determine if the value of the one of the received information items matches any of the list of improbable values for the information item.