Whom are the two persons talking about?

W: You look upset these days．Anything wrong?
M: Not really, I’m just worried about my daughter．
W: Oh，you mean Susan．Why? She’s such a nice girl．
M: Yeah I know．But somehow she’s become different recently.
W: In what ways? What has she done?
M: Oh，no，you don’t really want to hear it．
W: Come on．I am a mother of two girls．
M: Ok．I’m worried because she often hides in her room and sends messages to her friends．
W: Come on．It’s not a big deal．She needs friends at this age．You can talk with her if you are really concerned．
M: I guess so．Anyway,she is growing up．