user: Question: What is the quantity with more than 45 seats and MCI make?
Columns: ['Make', 'Year placed in service', 'Quantity', 'Number of seats', 'Wheelchair accessible? ()', 'Current status']
Types: ['text', 'text', 'real', 'real', 'text', 'text']
Sample row: ['GM " New Look "', '1971, 1972', 132.0, 45.0, 'No', 'Retired; one bus retained for historical purposes']
SQL:

assistant: SELECT "Quantity" FROM "Table" WHERE "Number of seats" > 45.0 AND "Make" = 'MCI';