user: Question: What opponent has April 23 as the date?
Columns: ['Date', 'City', 'Opponent', 'Results¹', 'Type of game']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['March 30', 'Timişoara , Romania', 'Romania', '2:0', 'Friendly']
SQL:

assistant: SELECT "Opponent" FROM "Table" WHERE "Date" = 'April 23';