听力原文：W: Good morning, Housing Office. How can I help you? M: Hi, I'm calling about the new, low-cost housing for graduate students. W: Are you aware that it's only available to married graduate students and their families? M: Yes, I think my wife and I may qualify, since she's still in graduate school. But I was wondering whether there were any other requirements. W: Well, unless you have more than one child, you have to have a combined annual income that's less than fifteen thousand dollars. M: I'm working as a part-time research assistant, so that's no problem! But right now we're living with my wife's parents. Does that mean we'd have to include their income, too? W: Not necessarily. Why don't you stop by our office, so I can give you some forms to fill out and explain everything in more detail. M: That sounds like a good idea. Would tomorrow morning be all right? W: The afternoon might be better. It 'can be pretty crazy around here on a Friday morning. M: All right then, I'll try to make it in the afternoon. Is there anyone special I should ask for? W: You can ask for me, Susan Davidson, or my assistant, Bill Brown. Why does the man call the woman?