A: Excuse me, is this seat taken?
B: No, I don't think so. 
A: Thanks, I am waiting for the train at 9 o’clock to Shanghai. Where will you go? 
B: What a coincidence! We are the same train. I will go to Shanghai to enjoy my holiday.
A: Really? Do you know where is beautiful? 
B: I hear that when you get to the the oriental pearl TV tower, you can overlook the whole Shanghai. In addition, the seaside is also very beautiful and fascinating.
A: Sounds good. But I have to go to Shanghai to have a meeting. If I have time, I will go there to have a look.
B: Ok. Could you please keep an eye on my luggage? I want to go to the washroom.
A: No problem. 
B: Thank you so much.