Reuben: hey, what are you doing?
Lucy: nothing special
Lucy: why are you asking?
Reuben: I want to take Daisy and Norma for a walk
Reuben: I thought you could join us with Marvin
Lucy: great idea, meet you on our usual spot then!
Reuben wants Lucy and Marvin to join him, Daisy, and Norma for a walk.