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 "John W. Creighton Jr."): John W. Creighton Jr. (born 1933) is an American executive who has worked with many corporations, organizations, and universities.
Relevant evidence: No