user: Question: What day was Wales the opposing team?
Columns: ['Opposing Teams', 'Against', 'Date', 'Venue', 'Status']
Types: ['text', 'real', 'text', 'text', 'text']
Sample row: ['France', 24.0, '07/02/1998', 'Stade de France , Saint-Denis', 'Five Nations']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Opposing Teams" = 'Wales';