What are the names of all employees who are not certified to fly Boeing 737-800s?
CREATE TABLE aircraft (
    aid number,
    name text,
    distance number
)

CREATE TABLE flight (
    flno number,
    origin text,
    destination text,
    distance number,
    departure_date time,
    arrival_date time,
    price number,
    aid number
)

CREATE TABLE employee (
    eid number,
    name text,
    salary number
)

CREATE TABLE certificate (
    eid number,
    aid number
)
SELECT name FROM employee EXCEPT SELECT T1.name FROM employee AS T1 JOIN certificate AS T2 ON T1.eid = T2.eid JOIN aircraft AS T3 ON T3.aid = T2.aid WHERE T3.name = "Boeing 737-800"
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: What are the names of all employees who are not certified to fly Boeing 737-800s? ### Input: CREATE TABLE aircraft (
    aid number,
    name text,
    distance number
)

CREATE TABLE flight (
    flno number,
    origin text,
    destination text,
    distance number,
    departure_date time,
    arrival_date time,
    price number,
    aid number
)

CREATE TABLE employee (
    eid number,
    name text,
    salary number
)

CREATE TABLE certificate (
    eid number,
    aid number
) ### Response: SELECT name FROM employee EXCEPT SELECT T1.name FROM employee AS T1 JOIN certificate AS T2 ON T1.eid = T2.eid JOIN aircraft AS T3 ON T3.aid = T2.aid WHERE T3.name = "Boeing 737-800"