Provide the theme summaries for the following conversation: 

Joan: how's work on the text going?
Brian: It's going, just a little slower than I thought
Joan: How much longer will it take?
Brian: Give me two more weeks
Joan: I don't have two more weeks! you kidding me???
Brian: What do you mean?? I though we had a different agreement
Joan: Well, that changed when one of the sponsors pulled back
Brian: What? I had no idea
Joan: What do you mean, did you check your email? He said he personally wrote you a message
Brian: Damn it, my mailbox must have crashed
Joan: Well, before you do that, I gotta tell you something else
Brian: Another great news?
Joan: I bit better than the previous one:) 
Brian: Shoot me!
Joan: I can only represent you for another 6 months, Bob and I are expecting:) I am gonna go for maternity leave in half a year
Brian: O wow! That's great news!! Congrats you guys!
Joan: And umm, I am gonna help you find replacement somehow, haven't figure it out yet, but no worries
Brian: Oh, I am not worried at all, just excited for you!
Joan: Thank you:) We are excited too
Brian: Oh man, I hate to spoil that moment, but this email looks bad, real bad
Joan: I know! Better get to work then
Brian: I am on it boss! No more slacking
Joan: Good to hear that

Summary: 
Brian needs two more weeks to finish the text, but has to work faster due to one of the sponsors pulling back. Brian was unaware of that fact, because of a malfunctioning mailbox. Joan is expecting a baby and will only represent Brian for another six months. Joan will find a replacement for Brian.