Answer:
According to chapter 3
The Little prince was suprised and amused when the Pilot ( the Narrator) told him that he fell from the sky, that Little Prince laughs and tells the pilot that he also fell from the sky
Hope this helps, sorry if it didn't.
For further help on the book you're reading I would strongly suggest looking it up on Grade Saver. They have detailed summaries of each chapter, I've used it in the past and it has worked for me.