Congratulations, you've completed the tutorial!
You've managed to purchase an airport
You've got the courage to reset your progress for a future investment
You've completed your first technology research.
You've maxed out all technologies
You've unlocked intercontinental aircraft
You've maxed out all boosters
You've managed to purchase the third airport
You've reached maximum prestige level
You've managed to purchase the fourth airport
You've managed to purchase the fifth airport