user: Question: When was the Monza circuit?
Columns: ['Name', 'Circuit', 'Date', 'Winning drivers', 'Winning constructor', 'Report']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Italian Grand Prix', 'Monza', '24 May', 'Giuseppe Campari', 'Alfa Romeo', 'Report']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Circuit" = 'Monza';