percakapan bahasa inggris penggunaan so that dan in order to

Alex : Hey Kelly!
Kelly : Hi Alex! What are you doing here?
Alex : I'm just chilling with my family in order to enjoy our Sunday.
Kelly : Oh, me too. But I have a lesson today.
Alex : What lesson? And why are you taking a lesson on Sunday?
Kelly : I have a math exam tomorrow. I'm taking a lesson today so that I can reach 100. Hahaha.
Alex : Oh, hahaha. Good luck for that.
Kelly : Oh by the way, I need to go.
Alex : Okay goodbye Kelly.
Kelly : Bye Alex.