听力原文：M: You must be pretty excited about your trip to Europe, Mary. When is it that you are leaving? W: In just three weeks, and I am really excited. But there are still a few things I need to do before I go. M: Like what? W: Like renewing my passport, going to the travel agency to buy my plane ticket and figuring out what to do with my apartment while I'm gone. M: You are not going to give it up, are you? W: No way, I'll never find another apartment around here. But I don't like the idea of paying three months' rent on an empty apartment, either. M: Perhaps you could sublet it. W: Yes, but who to? M: An old colleague of mine, Jim Thomas, is coming here to do some research this summer, from June to August. Perhaps you could sublet it to him. W: That's exactly when I'll be away. It sounds ideal, as long as the landlord agrees. M: Tell you what, I'll be calling Jim late this week anyway, so I'll mention it to him then. W: Well, thanks, Bill, let me know what happens. That extra money will really come in handy. What does Mary need to do at the travel agency?