Tony:What are you doing for vacation,Lin Hui?
Lin Hui:I'm going to Tibet for a week.
Tony:That sounds interesting!What are you doing there?
Lin Hui:I'm going hiking in the mountanins.How about you,Tony?What are you doing for vacation?
Tony:I'm visiting my friend in Hong Kong.
Lin Hui:Oh Yeah?How long are you staying?
Tony:Just for four days.I don't like going away for too long.
Lin Hui:Well,have a good time!Send me a postcard from Hong Kong!
Tony:Sure.Show me your photos when we get back to shool.