. >> reporter: margaret applegate has been an employee with united airlines for almost three decades.emic, the customer service representative says she was proud of the way the airline dealt with the deadly disease. >> i felt that united was doing a great job, and our airplanes were so clean, and people looked like they were very confident about flying. >> reporter: still, when the covid vaccine became available, she says she was reluctant to get it. >> there was one side that was very scary with all the side effects that i was hearing from some friends and relatives. in general, if there were no social media, i think i would have been quicker to just go in and get vaccinated. >> you actually say that social media is what made you more hesitant?p>> correct. because social media can be a very good thing, but it can steer you towards more negative ideas. >> reporter: but when the airline announced a vaccine mandate in july, she found herself at a crossroads and turned to lori, a supervisor, for advice. what was that conversation like? >> i started mentioning to her, she retire? should i