An emotion estimator of a dialogue control device estimates a dialogue partner's emotion based on the dialogue partner's facial expression or voice prosody. A dialogue controller controls the dialogue with the dialogue partner using a topic selected based on whether the emotion estimated by the emotion estimator is good or bad. Specifically, the dialogue controller controls the dialogue with the dialogue partner based on a topic map created by a topic mapper and including a topic that the dialogue partner likes.
Dialogue control device, dialogue control method and non-transitory computer-readable information recording medium