Write SQL query to solve given problem: What is the full name of employee who sold 1000 units?. Keep the solution inside sql tag ```sql [SQL-Query] ```
SELECT DISTINCT T2.FirstName, T2.MiddleInitial, T2.LastName FROM Sales AS T1 INNER JOIN Employees AS T2 ON T1.SalesPersonID = T2.EmployeeID WHERE T1.Quantity = 1000