补全对话  根据上下文的意思，把下列对话补充完整。
A: My name’s Li Ming. .                           ?
B: My name’s Anna. .                            !
A: Nice to meet you, too! Are you a student in this school?
B: .                     . But my sister is.
A: What’s her name?
B: .                              .
A: I know Emma. She is my classmate.
B: Great! Can you take this schoolbag to Emma?
A: OK.
B: .                              .
A: You’re welcome.