Помогите!!! Прошу пж

A- Good morning. How can I help you?
B - good morning. I want to buy a present for my little sister.
A - How about this doll?
B - That’s a good idea. It looks beautiful. How much is it?
A - it’s three thousand rubles.
B - can I have a smaller doll?
A - Here you are it costs 500 rubles.
B - good. I’ll take it. Thank you