user: Question: What is the Date if the Site is Shriver Field?
Columns: ['Date', 'Time', 'Opponent', 'Score', 'Site', 'City']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['02/28/06', '5:00pm', 'UMBC', '3-9', 'UMBC Stadium', 'Catonsville, MD']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Site" = 'Shriver Field';