The system is Collaborative with free interaction and not guided. Users can ask any question to the system, when and how they want to, using their own everyday words and phrases, just as if they were talking to another person. AGORA it's been used successfully in a wide range of information services in which customers have been able to communicate with a presential or remote machine monitored by this system. Moreover AGORA has the possibility of incorporating new services since it's a platform of association, composed by a Kernel and an increasing amount of modules or subdialogues. .