**Twin-Robot Dialogue System with Robustness against Speech Recognition Failure in Human-Robot Dialogue with Elderly People**

**Takamasa Iio 1,2,\*, Yuichiro Yoshikawa 3,4, Mariko Chiba 5, Taichi Asami 5, Yoshinori Isoda <sup>5</sup> and Hiroshi Ishiguro 3,4**


Received: 23 December 2019; Accepted: 17 February 2020; Published: 23 February 2020
