Complete the dialogue:

A. -Good morning. ...

B. - Good morning. ... for my little sister.

A. - ... this doll?

B. - That’s a good idea. It looks beautiful. ...

A. - It’s three thousand rubles.

B. - Can I have a smaller doll?
A. - ... It costs 500 rubles.
B. - Good. I’ll take it. Thank you.