user: Question: What is Date, when Tie No is "Replay", and when Away Team is "Crystal Palace"?
Columns: ['Tie no', 'Home team', 'Score', 'Away team', 'Date']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['1', 'Sheffield Wednesday', '3–2', 'Coventry City', '30 January 1984']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Tie no" = 'Replay' AND "Away team" = 'Crystal Palace';