user: Question: Which date contained Aubrey O'Day as the cover model?
Columns: ['Date', 'Cover model', 'Centerfold model', 'Interview subject', '20 Questions', 'Pictorials']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['1-09', 'Carmen Electra', 'Dasha Astafieva', 'Richard Branson', 'Marston and Cooper Hefner', 'Carmen Electra']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Cover model" = 'Aubrey O''Day';