Grouping single user messages

[Damián Nohales]

Hi,
I have a question about the plugin existence that can group the
messages from a single user, instead of the show of the buddy friend
in all messages, like this:

Damián: Hi
-How are you?
Vanina: I'm fine, and you?
Damián: fine too...
-I have no inspiration to write any<lf>
 buddy dialog!
-blabla

This shows the conversation in a more pleasant form, have you know a
plugin to do that?

Sorry about my English
Regards!