user: Question: What was the date of the game that had a loss of Willis (0–1)?
Columns: ['Date', 'Opponent', 'Score', 'Loss', 'Record']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['April 5', '@ Royals', '11–2', 'Underwood (0–1)', '0–1']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Loss" = 'Willis (0–1)';