B. Rex: a dialogue agent for book recommendations Mitchell Abrams author Luke Gessler author Matthew Marge author 2019-09 text Proceedings of the 20th Annual SIGdial Meeting on Discourse and Dialogue Satoshi Nakamura editor Milica Gasic editor Ingrid Zukerman editor Gabriel Skantze editor Mikio Nakano editor Alexandros Papangelis editor Stefan Ultes editor Koichiro Yoshino editor Association for Computational Linguistics Stockholm, Sweden conference publication abrams-etal-2019-b 10.18653/v1/W19-5948 https://aclanthology.org/W19-5948/ 2019-09 418 421