No, I have not met you.

"So what's your name?"

"I'm Megan."

"I'm xxxx [I've already forgotten his name. At least he is sure to remain anonymous] Good to meet you. You look really familiar, like I've seen you in the Union before or something."

"Ya, it's possible, I'm here a lot."

"It's like we sat down together and had lunch with friends or something."

[Not possible. As cute and forward as you are, we have never met. This is awkward.]