user: Question: On what date was Patty Fendick an opponent?
Columns: ['Outcome', 'Date', 'Tournament', 'Surface', 'Opponent', 'Score']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Runner-up', 'August 1, 1983', 'Indianapolis', 'Clay', 'Andrea Temesvári', '2–6, 2–6']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Opponent" = 'Patty Fendick';