Dear Henry,
I'm glad to know you are coming to my house next Sunday. But I have to take an English lesson that afternoon. I can't meet you at the train station. Let me tell you the way to my house.
When you arrive at the train station, first, go out of the train station, and then go down West Street to the north. Don't turn left at the crossing, and just walk straight on. You can see a bus stop near a movie theatre on your left. Next, take the NO.2 bus there and get off at the fifth stop. Then you are in Garden Street. Go down the street and walk until(直到) you see a park. Walk across the park and you can find a bank on your right. My house is opposite the bank. I will meet you at the gate of my house. Please call me if you have any problems. See you then.
Your friend,
Kevin