Dear SigDialers, Human-Machine Dialogue will be the key language enabler of many technologies and tools developed to support the expectations of AI transformation. Whether it is a dialogue in the medicine, health, robotics or virtual worlds domain, we need to rethink core computational and interaction models. The theme of the workshop is : “Human-Machine Dialogue in the Era of Multimodal Foundation Models” Please join us and contribute to a participatory discussion on these topics at the 16th International Workshop on Spoken Dialogue Systems in Trento (Italy), February 26 - March 1, 2026. We have a rich technical program including a great line up of cross-disciplinary keynote speakers, industry track and special sessions. Check the website https://sites.google.com/unitn.it/iwsds26/home?authuser=0 Best ---- Prof. Dr.-Ing. Giuseppe Riccardi Founder and Director of the Signals and Interactive Systems Lab Department of Computer Science and Information Engineering University of Trento