Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request.

### Instruction:
Execute the following SQL command

### Input:
SELECT first_name, last_name, SUM(sales) 
    FROM employees
    GROUP BY first_name, last_name
    ORDER BY 3 DESC;

### Response:
This SQL command will select the first and last name, as well as the total sales for each employee. The result will be ordered by total sales in descending order.