Dialogue 1
a：Jack，have you met Judy？
b：No，I haven't.
a: Judy,this is Jack.
b: It's nice to meet you, judy.
c: I'm pleased to meet you, Jack.
b: Are you a student here
Dialogue 2
a: Bill, have you met Jim
b: No, I've seen him but we haven't met.
a: This is my friend, Bill Jackson. He's with Bank of America. Bill, I'd like to introduce my roommate, Jim smith.
b: How do you do  It's nice to meet you.
a: How do you do
b: What was your first name again
Dialogue 3
a: Do you know Judy,Jack
b: No, I don't believe we've met.
a: Oh, then let me introduce you to her right now. Judy, this is my friend, Jack.
c: Hi, Jack. I' m glad to meet you.
b: I' m glad to meet you. Can't we sit down somewhere and talk
c: Sure. Let's sit over there.
举一反三
a: Have you met my friend, Bill, before
b: No, I don't believe so.
a: I believe you' re Mr.Benson, aren't you
b: Yes, I am.
a: Allow me to introduce myself. My name is Charles Chen.
b: How do you do, Mr. Chen  I' m glad to meet you.
a: Let me introduce myself. I'm Jim. I' m with Bank of Taiwan.
b: My name is Jack. I' m from New York. I' m glad to be here.
a: It's pleasure to meet you.
b: The pleasure is all mine.
背景说明
Have you met sb  Do you know sb  你认识某人吗？
这句话常被用来介绍双方认识。meet 的意思不是单纯的见面，而是彼此经过谈话，认识对方。 see则是看到，而不是交谈。因此I've seen him but we haven't met. 表示看过，但不认识。
如果你是被介绍的一方，介绍人可能会说......, this is my friend,....... 如果别人没有主动介绍你，你可以自我介绍说：My name is ....  .
礼貌上，要表示很高兴认识对方，有几种说法：It's nice to meet you. I'm glad to meet you. I am pleased to meet you. I am pleased to meet you. It's a pleasure to meet you.
注释
first name 名字（= given name）
last name 姓（=family name，surname）
right now 立刻
over there 在那里
over here 在这里