user: Question: Which date was a GTS class on the Mosport International Raceway?
Columns: ['Race', 'Length', 'Class', 'Circuit', 'Date']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Rolex 24 at Daytona', '24 Hours', 'Both', 'Daytona International Speedway', 'February 1 February 2']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Class" = 'GTS' AND "Circuit" = 'Mosport International Raceway';