In sales ID between 30 and 40, who is the customer that bought a total quantity of 403?
who refers to FirstName, LastName;
SELECT T2.FirstName, T2.LastName FROM Sales AS T1 INNER JOIN Customers AS T2 ON T1.CustomerID = T2.CustomerID WHERE T1.Quantity = 403 AND T1.SalesID BETWEEN 30 AND 40