je dois rédiger un dialogue entre 2 meilleures amies en anglais avec une addicte au shopping et une qui l'a persuade d'arrêter ( ex : should, must , can ...)

Two best friends are talking : one of them is addicted to shopping and the other one want to convince her to stop being that addicted .
Christy : Lets go shopping ! We'll have fun !
Mary : You must stop spending money on things you don't actually really need .
Christy : I need a new denim jacket ! i just have 7 jackets , i need one more !
Mary : Some people just have a pant , a jacket , and some have no shoes ! And you're telling me you need a jacket cause you just have seven ?
christy : Hmm , i think you must be kind of right .
Mary : lets go to the park instead !
Christy : hmm okay