Final Call for Participation Reasoning and Interaction Conference (ReInAct) University of Gothenburg, Sweden October 4-6, 2021 (hybrid online and physical event) Reasoning and Interaction (ReInAct) is a conference organised by the Centre for Linguistic Theory and Studies in Probability (CLASP), https://gu-clasp.github.io/, at the Department of Philosophy, Linguistics and Theory of Science (FLoV), https://www.gu.se/flov . It is sponsored by SIGSEM http://sigsem.org, the ACL special interest group on semantics. ReInAct will bring together researchers interested in computationally relevant approaches to reasoning and interaction in natural language. ReInAct is open to Machine Learning, Symbolic and Experimental approaches, as well as combinations of these. *REGISTRATION* Registration is free and is now open at https://forms.gle/GhCqE2PQ6bEQLeqVA If you are intending to travel to Gothenburg and you would like more information about travel and accommodation, please contact Hanna Edblom at hanna.edblom@gu.se *INVITED SPEAKERS* Verena Rieser, Heriot-Watt University, Edinburgh Joyce Chai, University of Michigan Riccardo Fusaroli, Aarhus University *PROGRAMME* We have an exciting programme of 3 invited speakers, a special session on a corpus and a shared task on dialogue and natural language inference and 9 contributing papers. For details, please see https://sites.google.com/view/reinact2021/programme The conference will start on Monday afternoon and will finish on Wednesday afternoon. *WEBSITE* https://sites.google.com/view/reinact2021/