Which airline operated more flights on 2018/8/1, American Airlines Inc. or Endeavor Air Inc.?
SUM(Description = 'American Airlines Inc.: AA') > SUM(Description = 'Endeavor Air Inc.: 9E') means American Airlines Inc. operated more flights than  Endeavor Air Inc; SUM(Description = 'American Airlines Inc.: AA') < SUM(Description = 'Endeavor Air Inc.: 9E') means Endeavor Air Inc. operated more flights than American Airlines Inc.; on 2018/8/1 refers to FL_DATE = '2018/8/1';
SELECT CASE WHEN COUNT(CASE WHEN T3.Description = 'American Airlines Inc.: AA' THEN 1 ELSE NULL END) > COUNT(CASE WHEN T3.Description = 'Endeavor Air Inc.: 9E' THEN 1 ELSE NULL END) THEN 'American Airlines Inc.: AA' ELSE 'Endeavor Air Inc.: 9E' END AS RESULT FROM Airports AS T1 INNER JOIN Airlines AS T2 ON T1.Code = T2.ORIGIN INNER JOIN `Air Carriers` AS T3 ON T2.OP_CARRIER_AIRLINE_ID = T3.Code WHERE T2.FL_DATE = '2018/8/1'
database name:db_id airline
Air Carriers table Air Carriers Cols: Code dtype integer, Description dtype text, 
Airports table Airports Cols: Code dtype text, Description dtype text, 
Airlines table Airlines Cols: flight date dtype text, operator carrier airline id dtype integer, tail number dtype text, operator carrier flight number dtype integer, origin airport id dtype integer, origin airport sequence id dtype integer, origin city market id dtype integer, ORIGIN dtype text, destination airport id dtype integer, destination airport sequence id dtype integer, destination city market id dtype integer, destination dtype text, scheduled local departure time dtype integer, departure time dtype integer, Departure delay dtype integer, departure delay new dtype integer, arrival time dtype integer, arrival delay dtype integer, arrival delay new dtype integer, CANCELLED dtype integer, cancellation code dtype text, scheduled elapsed time dtype integer, actual elapsed time dtype integer, carrier delay dtype integer, weather delay dtype integer, National Aviavtion System delay dtype integer, security delay dtype integer, late aircraft delay dtype integer, 
