「マギーの家に行くけれども一緒に行く？　」

= Maggie no ie ni iku keredomo issho ni iku?

= I’m going to Maggie’s house. Do you wanna come with me?

Cookie : 「ちょっと遠慮しておくよ。」

= Chotto enryo shite okuyo.

= Well, I’d rather not.