user: Question: What is the average assets in billions of the company Bank of America, which has less than 49.01 billions in sales?
Columns: ['Rank', 'Company', 'Headquarters', 'Industry', 'Sales (billion $)', 'Profits (billion $)', 'Assets (billion $)', 'Market Value (billion $)']
Types: ['real', 'text', 'text', 'text', 'real', 'real', 'real', 'real']
Sample row: [1.0, 'Citigroup', 'USA', 'Banking', 94.71, 17.85, 1264.03, 255.3]
SQL:

assistant: SELECT AVG("Assets (billion $)") FROM "Table" WHERE "Company" = 'Bank of America' AND "Sales (billion $)" < 49.01;