CREATE TABLE table_name_6 (seating VARCHAR, notes VARCHAR, introduced VARCHAR)

How many people can be seated on the aircraft that was introduced in 2008 and has notes of in service?
SELECT seating FROM table_name_6 WHERE notes = "in service" AND introduced = 2008
SELECT "seating" FROM "table_name_6" WHERE "in service" = "notes" AND "introduced" = 2008