user: Question: What surface was the game played on for the September 13, 2009 match?
Columns: ['Outcome', 'Date', 'Tournament', 'Surface', 'Opponent', 'Score']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Winner', 'November 26, 2005', 'Ashkelon , Israel', 'Hard', 'Pemra Özgen', '6–1, 6–1']
SQL:

assistant: SELECT "Surface" FROM "Table" WHERE "Date" = 'September 13, 2009';