โปรดระบุเวลาเที่ยวบินจากบอสตันไปพิตต์สเบิร์ก ไม่จำเป็นต้องใช้ตารางทั้งหมด
please list the flight times for BOSTON to PITTSBURGHIt is not neccessary to use all the tables.
 airport:  airport_code [ varchar]  airport_name [ text]  airport_location [ text]  state_code [ varchar]  country_name [ varchar]  time_zone_code [ varchar]  minimum_connect_time [ int] 
SELECT DISTINCT flight.arrival_time, flight.departure_time FROM airport_service AS AIRPORT_SERVICE_0, airport_service AS AIRPORT_SERVICE_1, city AS CITY_0, city AS CITY_1, flight WHERE CITY_0.city_code = AIRPORT_SERVICE_0.city_code AND CITY_0.city_name = 'BOSTON' AND CITY_1.city_code = AIRPORT_SERVICE_1.city_code AND CITY_1.city_name = 'PITTSBURGH' AND flight.from_airport = AIRPORT_SERVICE_0.airport_code AND flight.to_airport = AIRPORT_SERVICE_1.airport_code