Database: pilot_1
Question: What are the names of pilots who have planes in both Austin and Boston?
SQL:
SELECT T1.pilot_name FROM pilotskills AS T1 JOIN hangar AS T2 ON T1.plane_name  =  T2.plane_name WHERE T2.location  =  "Austin" INTERSECT SELECT T1.pilot_name FROM pilotskills AS T1 JOIN hangar AS T2 ON T1.plane_name  =  T2.plane_name WHERE T2.LOCATION  =  "Boston"