user: Question: Which opponent has a record of 3-0?
Columns: ['Res.', 'Record', 'Opponent', 'Method', 'Event', 'Round', 'Location']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['Loss', '9-8', 'Kenny Ento', 'Submission (triangle choke)', 'Palace Fighting Championship 4: Project Complete', 1.0, 'Lemoore, California , United States']
SQL:

assistant: SELECT "Opponent" FROM "Table" WHERE "Record" = '3-0';