  Humans are easily conscious of small differences in an android robot's (AR's)
behaviors and utterances, resulting in treating the AR as not-human, while ARs
treat us as humans. Thus, there exists asymmetric communication between ARs and
humans. In our system at Dialogue Robot Competition 2022, this asymmetry was a
considerable research target in our dialogue strategy. For example, tricky
phrases such as questions related to personal matters and forceful requests for
agreement were experimentally used in AR's utterances. We assumed that these AR
phrases would have a reasonable chance of success, although humans would likely
hesitate to use the phrases. Additionally, during a five-minute dialogue, our
AR's character, such as its voice tones and sentence expressions, changed from
mechanical to human-like type in order to pretend to tailor to customers. The
characteristics of the AR developed by our team, DSML-TDU, are introduced in
this paper.
