Suggestion and Offer

Zarya : "Hey Raissa, I heard that there are a lot of good movies this week, why don't we go to the cinema today?"
Raissa : "Really? Well,it's such a good idea. Let's go watch a horror movie then."
Zarya : "Okay I agree. But first we have to buy the tickets, don't we?"
Raissa : "Oh that's right. Can I buy some popcorn too? assuming that we will be hungry at the cinema."
Zarya : "Well I'll buy the tickets then."
Raissa : "Deal. We'll meet here with 2 tickets and 2 box of caramel popcorn,okay?"