The context of the following conversation is Tracy was planning the upcoming party. Tracy made the list of food and drink. At the last minute Tracy amended the list by adding something for kids.:
Tracy says What do you think about adding Kool-aid and cookies to the list?.
The friend responds I thought we already had all the food and drinks we wanted for the party written down..
Tracy responds We did, but I suddenly remembered we're going to have kids there and should buy something for them..
The friend responds That's a great idea. Definitely add the Kool-aid and cookies!.