Why did the woman go to London during the vacation?

M: Hi, Jane. It’ s nice to see you again. I heard that you went to the United Kingdom during the vacation.
W: Yes. I paid a visit to London and attended a summer course in English.
M: Wow. It sounds so good. How long did you stay there?
W: Well, I went there on July 5th and came back on August 15th.
M: What about the course?
W: I think the course was well organized. The teachers were quite kind to every student. They taught us to listen, speak, read and write in English, but it mostly focused on speaking. One interesting thing I found was that the English classes were different from ours because they were very free. You can sit anywhere you like in the classroom. You can ask the teacher questions at any time during the class, and you arc welcome to share your i-deas with the classmates and teachers. No one would judge you for your mistakes. I really enjoy this kind of class.
M: How interesting! Maybe our teachers should try that style as well.