'R',1,'SUPERSONIC AIRCRAFT'
'P',2,'FIRST CLASS PREMIUM'
'F',3,'FIRST CLASS'
'A',4,'FIRST CLASS DISCOUNTED'
'J',5,'BUSINESS CLASS PREMIUM'
'C',6,'BUSINESS CLASS'
'D',7,'BUSINESS CLASS DISCOUNTED'
'S',8,'STANDARD CLASS'
'W',9,'COACH ECONOMY CLASS PREMIUM'
'FN',10,'FIRST CLASS NIGHT SERVICE'
'Y',11,'COACH ECONOMY CLASS'
'CN',12,'BUSINESS CLASS NIGHT SERVICE'
'YN',13,'COACH ECONOMY CLASS NIGHT SERVICE'
'B',14,'COACH ECONOMY CLASS DISCOUNTED'
'H',15,'COACH ECONOMY CLASS DISCOUNTED'
'Q',16,'COACH ECONOMY CLASS DISCOUNTED'
'M',17,'COACH ECONOMY CLASS DISCOUNTED'
'T',18,'COACH ECONOMY CLASS DISCOUNTED'
'K',19,'THRIFT ECONOMY CLASS'
'L',20,'THRIFT ECONOMY CLASS DISCOUNTED'
'V',21,'THRIFT ECONOMY CLASS DISCOUNTED'
'BN',22,'COACH ECONOMY CLASS DISCOUNTED NIGHT SERVICE'
'QN',23,'COACH ECONOMY CLASS DISCOUNTED NIGHT SERVICE'
'KN',24,'THRIFT ECONOMY CLASS DISCOUNTED NIGHT SERVICE'
'VN',25,'THRIFT ECONOMY CLASS DISCOUNTED NIGHT SERVICE'
'U',26,'SHUTTLE SERVICE (NO RESERVATION NEEDED - SEAT GUARANTEED)'
'E',27,'SHUTTLE SERVICE (NO RESERVATION ALLOWED - SEAT TO BE CONFIRMED AT CHECK-IN)'