Mr. and Mrs. North - Masquerade

Pam and Jerry North are at Muldoon's, a small cafe on Bleeker Street. Jerry asks "How about another cocktail before we eat, darling?" Pam says "No, let's order". Jerry says "Okay. Waiter, menu, please" Pam says "Oh, my, this is a wonderful place. I never get tired of it, do you?" Jerry says "Nope". Pam says "I remember the first time I ever came here. I was in college then". Suddenly, Pam sees someone that she previously knew. Jerry asks "What's the matter, dear?" Pam says "It is him". Jerry asks "Who?". Pam says "Jeff Williams". Jerry says "Jeff Williams?" Pam says "The man sitting over there at the table nearest the bar. See him? The one with the mousy little blonde". Jerry says "Yeah, I see him. But who is he?" Pam says "I knew him in college. Oh. Excuse me a minute, Jerry. I'll be right back.". Pam goes over to his table and says "Jeff Williams, of all people. What a surprise". He says "I beg your pardon?" Pam says "Oh, you don't remember me. I'm Pam North. Only my name was Saunders in college". He says "Saunders? College?" Pam says "Modern European history. Professor Blair's class". He says "I'm afraid this is a mistake. Apparently you have me confused with someone else. My name is Vincent Wayne, and this is my wife". Pam says "But... but this is impossible". He asks "Do you think I'm lying to you, Mrs... I don't believe I caught your name". Pam says "North". He says "As far as I know, Mrs. North, I've never seen you before in my life". Pam says "Well, I... I'm sorry. Excuse me". Pam goes back to her table and says "Jerry, let's get out of here". Jerry says "Get out? Why?" Pam says "Never mind. I want to go, right now". Jerry says "But darling, we haven't eaten. What's the matter?" Pam says "Well, that wasn't Jeff Williams". Jerry says "Oh, so that's it. And you're embarrassed". Pam says "No, I'm not embarrassed. I just can't understand why he'd lie, that's all". Jerry says "Lie?". Pam says "Yes, that man is Jeff Williams".