user: Question: What date was the match played where Amy Frazier was the opponent?
Columns: ['Date', 'Tournament', 'Surface', 'Opponent in the Final', 'Score']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['July 26, 1994', 'Surabaya , Indonesia', 'Hard', 'Elena Wagner', '2–6, 6–0, ret.']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Opponent in the Final" = 'Amy Frazier';