Question: John W. Creighton Jr. (born 1933) is an American executive who has worked with many corporations, organizations, and universities, these include which major U.S. airline headquartered in Chicago, Illinois?
Sentence (from "SkyMiles"): Created in 1981 as the "Delta Air Lines Frequent Flyer Program"; its name was changed to SkyMiles in 1995.
Relevant evidence: No