We propose a method to analyze users’ affirmative/negative intentions from plural utterances in spoken dialogs. In this paper,
we propose an automatic responsing system for the chat-system. Generating reply utterances is mainly performed based on a morphological analysis result. From the grammatical features, we choose a response type from the 3 kinds, "the response of repetition," "the response which shows interest," and "the simple response." We present the result of our method performed on the WWW-based chat-system and the users’impressions about the machine-generated reply sentences.