Give the name of the airline to which tail number N202NN belongs to.
name of the airline refers to Description; tail number refers to TAIL_NUM; TAIL_NUM = 'N202NN';
SELECT T2.Description FROM Airlines AS T1 INNER JOIN `Air Carriers` AS T2 ON T1.OP_CARRIER_AIRLINE_ID = T2.Code WHERE T1.TAIL_NUM = 'N202NN' GROUP BY T2.Description