user: Question: What is the Attendance of the game September 21, 2003?
Columns: ['Week', 'Date', 'Opponent', 'Result', 'Attendance']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [1.0, 'September 7, 2003', 'at Dallas Cowboys', 'W 27-13', '64,104']
SQL:

assistant: SELECT "Attendance" FROM "Table" WHERE "Date" = 'September 21, 2003';