Question: Out of those customers, who has spent the least amount of money? | Do you want the first and last names and id of the customer who has spent the least amount of money? | Yes please
SQL: SELECT T1.first_name ,  T1.last_name ,  T1.customer_id FROM customer AS T1 JOIN payment AS T2 ON T1.customer_id   =   T2.customer_id GROUP BY T1.customer_id ORDER BY sum ( amount )  ASC LIMIT 1