Charlie Weasley is very excited - he's scraped up enough galleons to make a trip to America to a huge convention called Dragon*Con. It's got over 40,000 attendees and is very specialized, so it must be a great wizard con, right?
...Or not. Charlie soon comes to learn that there are almost NO dragons to be found at Dragon*Con, except for a few signs. He's confused and a little bummed.
I don't know why this joke took me ALL DAY to come up with at the con. Of course Charlie would try to find the dragons at the convention called Dragon*Con.