... utterances back, and send commands to the domain plan reasoner and domain plan executor when appropriate. Conversational action is represented using the theory of Conversation Acts [Traum and Hinkelman, ... the intentions of the speakers (e.g., [Cohen and Perrault, 1979; Allen and Perrault, 1980; Grosz and Sidner, 1986]). An agent has certain goals, and communication results from a planning process ... [Allen andPerrault, 1980] James Allen and C. Perrault, "Analyzing Intention in Utterances," Artificial Intelli- gence, 15(3):143-178, 1980. [Allen and Schubert, 1991] James F. Allen and...