user: Question: What circuit was on June 1 with a class of Both?
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 "Circuit" FROM "Table" WHERE "Class" = 'Both' AND "Date" = 'June 1';