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In a pattern it aims to copy in several key U.S. destinations , Cathay recently announced plans to serve San Francisco by flying into American Airlines ' Los Angeles hub and routing continuing passengers onto a flight on the U.S. carrier .
 U.S., Cathay, San Francisco, American Airlines ', Los Angeles, U.S.
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: date, organization, person, geographical social political, national religious political, facility, cardinal, location, work of art, law, event, product, ordinal, percent, time, quantity, money, language 
Text: {0} 
Answer:
 U.S., Cathay, San Francisco, American Airlines ', Los Angeles, U.S.