Ashok K. Singh (Hospitality) and Michelle You of Cal Poly Pomona presented the paper "Machine learning prediction of hotel booking cancelation" at the GLOSERV 2021 virtual conference jointly organized by University of South Florida and University of Naples Federico II, May 10-13. Machine learning methods are used to predict room cancellations, and then a voting algorithm was used for the final prediction. Two real hotel demand datasets, one from a resort hotel and the other from a city hotel are used to illustrate the procedure.