user: Question: How many passengers (in millions) flew from Seoul in 2012?
Columns: ['Rank', 'City 1', 'City 2', '2012 Passengers (in millions)', '2011 Passengers (in millions)', 'Distance']
Types: ['real', 'text', 'text', 'text', 'text', 'text']
Sample row: [1.0, 'Seoul', 'Jeju', '10.156', '9.9', '450km']
SQL:

assistant: SELECT "2012 Passengers (in millions)" FROM "Table" WHERE "City 1" = 'Seoul';