Provide the theme summaries for the following conversation: 

Grace: Are you free on Saturday?
Karen: Yes, why? :D
Grace: Would you like to go with me and look at wedding dresses?
Grace: It's the only free Sat in a month. :(
Karen: Oh, of course! I'd love too! <3
Grace: Wonderful! :D It's gonna be so much fun!
Karen: I can't wait! Do you have any leads already?
Grace: Yes, a few! It's so good that all the bridal salons are on the 12th Street.
Karen: Yeah, that's really comfortable!
Grace: :)
Grace: Is 10 am okay?
Karen: It's perfect.
Grace: Great! <3 And at 2 pm we will grab some lunch. It's on me! ;)

Summary: 
Grace and Karen are going to meet on Saturday at 10 AM to look a wedding dresses in bridal salons. At 2 PM they're going to eat lunch, which Grace wants to pay for.