Excuse me, is this seat taken?
No, I don't think so.
Thanks. I am waiting for the train at 9:00 o'clock to Shanghai. Where will you go?
What a coincidence! We are on the same train.
Really? What is your seat number?
No.5 on the second row, and you?
I am on the third row No.10.
Could you please keep an eye on my luggage? I want to go to the washroom.
No problem.
Thank you so much.