Provide the date and tail number of flight with air carrier "Ross Aviation Inc.: GWE".
date of flight refers to FL_DATE; tail number of flight refers to TAIL_NUM; Ross Aviation Inc.: GWE refers to Description = 'Ross Aviation Inc.: GWE';
SELECT T1.FL_DATE, T1.TAIL_NUM FROM Airlines AS T1 INNER JOIN `Air Carriers` AS T2 ON T1.OP_CARRIER_AIRLINE_ID = T2.Code WHERE T2.Description = 'Ross Aviation Inc.: GWE'