Provide the theme summaries for the following conversation: 

#Person1#: Good morning, Laura, what do you want to talk to me about?
#Person2#: Good morning, professor Smith. I want to talk to you about changing my major. You see, I've decided to work in art museum when I graduate in three years, I think I should change my major to art history.
#Person1#: You know, Laura, I think you should give this decision after some more thought. You've do well in your years of business major, the sign is, all organizations need good managers.
#Person2#: That's true, but wasn't I still have to know a lot about art?
#Person1#: Why not attend a few lectures in art history and try working a few hours a week as a volunteer at the local art museum to see if you really like working there.

Summary: 
Laura wants to change her major from business to art history. Professor Smith advises her to make the decision after some more thoughts.