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 AS T1 JOIN Aircraft AS T2 ON T1.aid  =  T2.aid WHERE T1.flno  =  99
[{'name': 'Boeing 747-400'}]