Based on the analyses method of subject's intention from an answer, which has some elements with a corresponding degree to affirmation/negation. We can classify those elements into 3 categories: 1)affirmative/negative description on the yes-no question, 2)direct expression of intention in the answer, 3)indirect expression of intention in the answer. These elements are extracted from a surface structure of sentences and a concept of questions. Next, we developed an interactive system with dialog function that can analyze emotions of the user and then, response to him/her with facial expressions. The dialg system is due to our Emotion Generationg Calculations method. In this paper, we proposed a dialog system with the facial selection model by the combination of both users' intention related to affirmation/negation and user's emotion. Finally, we applied our proposed system into health service system for elderly.