Chatbot Research and Design: Third International Workshop, CONVERSATIONS 2019, Amsterdam, The Netherlands, November 19–20, 2019, Revised Selected Papers - FÃ¸lstad; Araujo, Theo; Brandtzaeg, Petter Bae; Granmo, Ole-Christoffer; Law, Effie Lai-Chong; Luger, Ewa; Papadopoulos, Symeon (Springer International Publishing, 2020)