user: Question: When Michele Pirro is the pole position what is the date?
Columns: ['Round', 'Country', 'Circuit', 'Date', 'Pole Position', 'Fastest Lap', 'Winning Rider', 'Winning Team', 'Report']
Types: ['real', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: [1.0, 'Australia', 'Phillip Island Grand Prix Circuit', '1 March', 'Kenan Sofuoğlu', 'Andrew Pitt', 'Kenan Sofuoğlu', 'Ten Kate Honda', 'Report']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Pole Position" = 'Michele Pirro';