How many American universities are exemplified by the man?

W: Excuse me, Mr. Smith, would you please tell me something about the American universities? I really can’t decide which university to choose.
M: Yes, of course. Well, there are so many universities for you to choose from. Some famous universities such as Harvard University, Yale University, University of Michigan, and Massachusetts Institute of Technology are really wonderful places to study in, but they are very competitive and expensive. Some smaller universities or institutes are very nice, and much cheaper.
W: What should I do after I decide which university to go to?
M: Well, first, you should ask for an application form. Then, you should send it in with a copy of your school records. After that, you should ask your teachers for some letters of recommendation. W: Do I need to take any tests?
M: Yes, you have to take TOEFL Test, which is Test of English as a Foreign Language.
W: Is it all right to apply to several universities at the same time?
M: Sure, no problem.
W: Another thing. Are foreign students allowed to work in the States?
M: Yes, but only in the summer. And you need to get permission from the U.S. Office of Immigration to do that. During the school year you’re not allowed to work unless the work experience is part of your school program.
W: Thank you. I appreciate your help.
M: You’re welcome. Please feel free to ask if you have any more questions.