Read the text and determine if the sentence is true (see options at the end):

Lawton–Fort Sill Regional Airport (IATA: LAW, ICAO: KLAW, FAA LID: LAW) is a city owned airport two miles south of Lawton, in Comanche County, Oklahoma. It is used for military aviation from nearby Fort Sill and Sheppard Air Force Base and is served by American Eagle. Allegiant Air runs occasional charters to various destinations in the western United States.

Sentence: No airlines serve Lawton–Fort Sill Regional Airport

1). Yes.
2). It's impossible to say.
3). No.