I will be hard and takes time to change.
Friendly Skies was such a success that it has been mentioned in many advertising articles, crossword puzzles, and trivia questions.
A few years ago, Reader's Digest has an article piece about "identify the company by slogans"....UA's Friendly Skies slogan was mentioned as one the top slogans people knew and majority of the people correctly identify UA as the company the slogan represented.