Find name of the services that has never been used.
CREATE TABLE services (
    service_name VARCHAR
)

CREATE TABLE party_services (
    service_id VARCHAR
)
SELECT service_name FROM services EXCEPT SELECT t1.service_name FROM services AS t1 JOIN party_services AS t2 ON t1.service_id = t2.service_id
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: Find name of the services that has never been used. ### Input: CREATE TABLE services (
    service_name VARCHAR
)

CREATE TABLE party_services (
    service_id VARCHAR
) ### Response: SELECT service_name FROM services EXCEPT SELECT t1.service_name FROM services AS t1 JOIN party_services AS t2 ON t1.service_id = t2.service_id