Hi, we are considering taking D386 to Beijing in July.
I have a few questions:
1) When is the earliest time that we could book the tickets online?
If we book 4 soft sleepers, would we get a cabin for 4?
Can the ticket be delivered to my relative's address in another city in China?

2) How much time does it take to go from the train station (Beijing South) to Beijing international airport? What options do we have besides taxi? Is there direct bus service between train station and airport?

The train arrives Beijing at 7am on Wednesday.
Thanks!