user: Question: What is the Date of the match with Opponent in the final Kenneth Carlsen?
Columns: ['Outcome', 'Date', 'Championship', 'Surface', 'Opponent in the final', 'Score in the final']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Winner', '13 July 1997', 'Båstad , Sweden', 'Clay', 'Juan Antonio Marín', '7–5, 6–2']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Opponent in the final" = 'Kenneth Carlsen';