Abstract: An artificial intelligence system for business processes comprises an input unit connected to a communication network and configured to receive a conversational input comprising a sentence; a decision-making engine configured to receive at input the sentence and to select an adequate reply from a database of possible replies or, in the case of absence of an adequate reply, to send an absent reply signal; an automatic reply unit configured to receive at input the selected adequate reply and to send the adequate reply to an output unit connected to the communication network; an operator interface unit connected to the output unit and configured to be activated in case of an absent reply signal for the generation of a manual reply by one or more operators in charge or for the manual selection of an adequate reply already present in the database.