( Li Xiong is a Chinese student studying in America. He has finished his study program, so he goes to make his farewells to his teacher Dr. Smith. )
A : Good morning, Dr. Smith.
B : Hi, Li. Take a seat, please.
A : Thank you, Dr. Smith. My studies here under the exchange program are completed now, so I'll be returning to China very soon.
B : Oh , that's a pity. I really wish you could continue your work here.
But I understand that your roots are in China and you must return home sooner or later. I hope you'll keep in touch with me and lei me know how your research program goes.
A : I am sure I will. You've been very helpful to me in these years.
B : It's been my pleasure. By the way, on what day are you leaving?
A : My departure is scheduled for next Friday.
B : Oh, I see. How about coming back to my office next Tuesday morning? I'm hoping I can find some materials for you.
A : Oh, that's wonderful ! Sure, I'll be here. Thank you, Dr Smith.
B : My pleasure. OK, see you next Tuesday then.
A : Good-bye, Dr. Smith!