1st Doctor is italics
Susan Foreman is normal text
10th Doctor is bold
Jenny (the Doctor's Daughter) is underlined italics
River Song is bold italics

Grandfather? Do you have any family, other than me?
Susan! Hello! Yes, I've got a daughter. I think she's alive. I hope she's alive.
Hi dad!
Yay! She is alive. That's good. I wonder how she got on here, anyway.
I'm surprised you even need to ask.
Who wold that be? Another long-lost family member?
Are you psychic, or something?
Are you Doctor Song? I mean, I just met you. But when I called for Grandfather, you ran off.
River Song, what exactly are you doing running away from a past me?
Spoilers…You're not quite ready for that conversation yet...
So, dad, now that I'm on here, what are you going to do with me?
Can I ask you how you survived?
She regenerated. My scanners picked up on the energy signal. I thought it was you, but then it wasn't. I'm not the only part time-lady on here anymore...
Why would you think it was me, and not someone else? I'm not the only renegade, you know!
Spoilers.
Oh, not you, too. She refuses to tell me ANYTHING. And she won't let me meet you, anyway. I know it would damage the time streams, but I'm sure the TARDIS could hold the paradox.
Let me see her!
I'm afraid you can't, sweetie. Not yet. We should go now anyway, come along, Jenny. There's an interesting archaeological dig on Manussa.
Oh, not another one!
Yes, another one. Do you remember Benny? She sent me a message saying there was something interesting there.
Oh, all right. But only because I want to see Benny. Did you hear that she's a professor now? Professor Bernice Summerfield!
From my perspective, she's been a professor for a while now. Let's go.
I wonder what they'll think when they find out that it's a past version of me.
A future version of me? On Manussa? What am I doing there?
Why is it so strange, being on Manussa?
Let's go there, I can show you.
Coming, Grandfather. See you sometime, future Grandfather!

AN: Ok, that is canon, now. (I'm referring to River Song bringing Jenny onto the TARDIS, and raising her like a daughter. And both of them meeting Benny, because Benny deserves to appear in way more fanfics.)
Thanks to Songbirdgirl for suggesting this one. R&R!