Ответ:

Dear John,

Hi! how are you? Your letter sounds really interesting, i hope you had a great time there!

Well, i think it is better to see dinosaurs in museums, because people memorise informations better if they see it in real life. And also, when you read books you can get bored easily, but if you going to see it in reality, then it would be really amazing and exciting to you! And I think people are indeed interested in dinosaurs, so this is why there is so many films about them.

By for now

Your friend, (напиши имя)