user: Question: On what date is there a status of Five Nations and an against of 23?
Columns: ['Opposing Teams', 'Against', 'Date', 'Venue', 'Status']
Types: ['text', 'real', 'text', 'text', 'text']
Sample row: ['Wales', 12.0, '15/01/1972', 'Twickenham , London', 'Five Nations']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Status" = 'Five Nations' AND "Against" = 23.0;