“…In any case, the process to be followed by a restaurant referrer chatbot's conversation protocol should be tailored to the needs of applicants taking into account the criteria contemplated in the literature and detailed in Table 3: price, availability, location, image of the dish, restaurant location, users' assessment, quality of food, social information, aesthetics, quality of service, place or environment and value for money. Tripp et al, 1995;Hwang et al, 2012;Harrington et al, 2012;Duarte Alonso et al, 2013;Frash, DiPietro & Smith, 2015 Food quality Gretzel & Yoo, 2008;Nilashi, bin Ibrahim, Ithnin & Sarmin, 2015;Cheng & Loi, 2014;Lu & Stepchenkova, 2012;Sparks, Perkins & Buckley, 2013;Xiang & Gretzel, 2010 Social Information/Online Reviews Charters & Pettigrew, 2005;An, Ryu, Park, Lee, Park, Shin & Shim, 2011 Photo/Aesthetics (representative image of the plate) Bojanic & Rosen, 1994;Jani & Han, 2011;Sulek & Hensley, 2004;Hancer & George, 2003;Oronsky & Chathoth, 2007;Tripp et al, 1995;Hwang & Masud, 2012;Muller & Woods, 1994 Quality of service (feasibility of staff, cleanliness...) Sulek & Hensley, 2004;Tripp et al, 1995;Hwang et al, 2012;Muller & Woods, 1994 Place and atmosphere Mak et al, 2012 Quality/price Winarno & Allain 1991;Tripp et al, 1995;Hwang, Lee & Park, 2012;Mak et al, 2012;Teas & Agarwal, 2000;Zeithaml, 1988;Hsiao et al, 2016 …”