user: Question: What date was the opponent in the final Virginie Pichet?
Columns: ['Outcome', 'Date', 'Location', 'Surface', 'Opponent in final']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Runner-up', '21 April 2002', 'Hvar , Croatia', 'Clay', 'Lucija Krezelj']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Opponent in final" = 'Virginie Pichet';