user: Question: what is the circuit where the fastest lap is Sam Lowes and the winning rider is Luca Scassa?
Columns: ['Round', 'Country', 'Circuit', 'Date', 'Pole Position', 'Fastest Lap', 'Winning Rider', 'Winning Team', 'Report']
Types: ['real', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: [1.0, 'Australia', 'Phillip Island Grand Prix Circuit', '27 February', 'David Salom', 'Fabien Foret', 'Luca Scassa', 'Yamaha ParkinGO Team', 'Report']
SQL:

assistant: SELECT "Circuit" FROM "Table" WHERE "Fastest Lap" = 'Sam Lowes' AND "Winning Rider" = 'Luca Scassa';