My honest opinion? This isn't a puzzle! There is one key piece of information that is missing that means you're set up to fail. I am definitely in the "first try" camp when it comes to these games so I'm sorry to say that this really put a damper on what was otherwise a really interesting game!
I literally had to look at this conversation feed to get a hint rather than wait for the dragon to help me, and when I did see the hint it frankly hurt my brain. If you are going to continue with puzzles, you need to make sure that you are given enough information from the start so that the chance for a first try is possible. Like I would have gotten this correct on the first try if there wasn't a "secret rule" to this puzzle. I dunno, it just felt a little "moon logic" to me.