Asking for permission

Laura - Hi, mum.
Mum - Hello, daugther.
Laura - There's a park centre of Banyoles on Saturday.
Mum - What time is it?
Laura - It's half past eleven. Please mum? It's Maria's birthday.
Mum - No, very late. (Make stach) you make an spanish exam on monday.
Laura - Mum, I stadyng on Sunday.
Mum - No, you can't.
Laura - Ok, ok.