And here they are:
Monica/first: "There's nothing to tell." Last: "We got some time."
Joey/first: "C'mon, you're going out with the guy." Last: ""Yeah. I guess so."
Chandler/first: "All right Joey, be nice." Last: "Sure. Where?"
Phoebe/first: "Wait, does he eat chalk?" Last: "So, I guess this is it."
Ross/first:"Hi." Last: "Do you realize we almost made it ten years without that coming up?"
Rachel/first: "Oh God Monica hi!" Last: "Okay, should we get some coffee?"
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First one of the series: Monica's "There's nothing to tell."
Last one of the series: Chandler's "Sure. Where?"