user: Question: What date did Namigata play against Wen-Hsin Hsu in the finals?
Columns: ['Outcome', 'Date', 'Tournament', 'Surface', 'Opponent in the final', 'Score']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Runner-up', '3 Jul 2004', 'Inchon , South Korea', 'Hard', 'Eun-Jeong Lee', '0–6 6–3 0–6']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Opponent in the final" = 'Wen-Hsin Hsu';