Show the names and main services for train stations that have the top three total number of passengers.
SELECT name ,  main_services FROM station ORDER BY total_passengers DESC LIMIT 3
SELECT name ,  main_services FROM station ORDER BY total_passengers DESC LIMIT 3
[{'Name': 'London Waterloo', 'Main_Services': 'South Western Main Line West of England Main Line'}, {'Name': 'London Victoria', 'Main_Services': 'Brighton Main Line Chatham Main Line'}, {'Name': 'London Bridge', 'Main_Services': 'South Eastern Main Line Thameslink'}]