user: Question: Which air date had the 18-49 rating/share of 3.3/9
Columns: ['#', 'Episode', 'Air Date', 'Time slot (EST)', 'Rating', 'Share', '18-49 (Rating/Share)', 'Viewers (m)', 'Rank (Overall)']
Types: ['real', 'text', 'text', 'text', 'text', 'real', 'text', 'text', 'text']
Sample row: [1.0, '"Pilot"', 'September 27, 2007', 'Thursday, 10:00 P.M', '7.8', 13.0, '4.7/13', '11.10', '#29']
SQL:

assistant: SELECT "Air Date" FROM "Table" WHERE "18-49 (Rating/Share)" = '3.3/9';