Speaker A: Good morning. Im Rose Robins, your flight attendant Welcome aboard Speaker B: _

Speaker A: Good morning. Im Rose Robins, your flight attendant Welcome aboard Speaker B: ______

A．Hello, my name is John Smith.

B．Hello, I"d like to sit beside my friend. Can you arrange that for us？

C．Good morning. Nice to meet you.

D．Hi. I"m glad to know you. This is my first flight to Shanghai.

请帮忙给出正确答案和分析，谢谢！