Where does the conversation probably take place?

(M = man, W = woman)
M: Hi, Viola. Anybody sitting here?
W: Oh, hi, Tyler. No, have a seat. Looks like the whole dorm came to have lunch today, doesn’t it?
M: Yeah, it does; it’s crowded. They must have bused some of them in! Hey, in class today I heard you said that you have a big family.
W: That’s right. I’ve got six brothers and five sisters.
M: Wow! That is pretty big! Are you the oldest?
W: No. Actually, I’m the second oldest.
M: That’s got to be a lot of work. What do your parents do?
W: Well, my father drives a cab. He works out at the airport at night.
M: What about your mother? What does she do?
W: My mother runs a small family store.
M: What kind of store is it?
W: Oh, we mostly sell food—bread, eggs, milk, rice, that sort of thing.
M: I guess a food store like that would come in handy if you had a large family.