List the vehicle flight number, date and pilot of all the flights, ordered by altitude.
return flights ;return vehicle flight number of  #1 ;return date of  #1 ;return pilot of  #1 ;return altitude of  #1 ;return #2 ,  #3 , #4 ;return #6 sorted by #5
['select', 'aggregate', 'project', 'project', 'project', 'union', 'sort']