user: Question: What date did the DVD for Season Six come out in region 2?
Columns: ['DVD Name', '# of Ep', 'Region 1', 'Region 2', 'Region 4']
Types: ['text', 'real', 'text', 'text', 'text']
Sample row: ['Season One', 10.0, 'July 11, 2006', 'September 3, 2007', 'July 18, 2007']
SQL:

assistant: SELECT "Region 2" FROM "Table" WHERE "DVD Name" = 'Season Six';