CREATE TABLE employee (eid NUMBER, name CLOB, salary NUMBER)
CREATE TABLE aircraft (aid NUMBER, name CLOB, distance NUMBER)
CREATE TABLE flight (flno NUMBER, origin CLOB, destination CLOB, distance NUMBER, departure_date TIME, arrival_date TIME, price NUMBER, aid NUMBER)
CREATE TABLE certificate (eid NUMBER, aid NUMBER)

What is the name of the aircraft that was on flight number 99?
SELECT T2.name FROM flight AS T1 JOIN aircraft AS T2 ON T1.aid = T2.aid WHERE T1.flno = 99
SELECT "T2"."name" FROM "flight" "T1" JOIN "aircraft" "T2" ON "T1"."aid" = "T2"."aid" WHERE "T1"."flno" = 99