Southwest Airlines said Thursday that it plans to drop the open-boarding system it has used for more than 50 years and will start assigning passengers to seats, just like all the other big airlines. The airline said it has been studying seating options, running tests and surveying customers. Southwest discovered that preferences have changed over the years and the vast majority of travelers now want to know where they are sitting before they get to the airport. MORE: https://www.cbs8.com/article/news/nation-world/southwest-plans-to-start-assigning-seats/507-2fd67f27-7c49-48f0-8bb6-61836dc16076