Context:

If/when I choose to make an offer in accordance with the above market's description, this market's condition has been met. If they decline the offer, this market resolves N/A. Otherwise, it resolves based on whether they actually keep their mask off for the entire rest of the flight. (I'll inform them that they must keep it off until we touch down, but I'll be a little lenient and still resolve YES if they put it on any time after we begin our final decent.)