Cate, here it is, what you needed
London dialogue
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Mac: Oh, I forgot to do something. We had plans? * entering his office where Pyton is waiting for him*
Peyton: No. I have a proposition for you. *she stands up*
Mac: Oh.
Peyton: Well, proposition isn't exactly the right word. It's more, more like a... an invitation. But it would require that you take a little time off work and spend some time with me.
Mac: A little vacation.
Peyton: Ten days.
Mac: *little smile*
Peyton: I know. I have done my research and apparently you've only missed five and a half days of work since you joined the NYPD. But Mac, I was thinking with everything that you've been going through and because you adore me, and you do adore me, it would be just great if you could take some of this seven weeks of vacation you've collected and... come with me to London.
Mac: You bought the ticket? :| *yeah she did :O*
Peyton: I really want you to say yes.
Mac: Peyton...
Peyton: well, you see, I'm... I'm going to speak at a pathologist's conference and I just thought it would be fun for us to both go, you know? I can show you around London.
Mac: Wait, wait a minute... you smell something?
Peyton: Oh, yeah, I do.
Mac: is that sulfur? A gas leak. We need to get out now.
Peyton: I'll go check on my team.
Mac: I'll meet you outside. *they take separate ways*