Good day,
We're in Beijing, we'll travel to pingyao and then I would like to get train tickets from pingyao to xian as below:
departure from pingyao 24 september
night train 2669 (or the other one departure from pingyao at 20:25)
soft sleeper in the same cabin
2 people
could you help me?

Waiting for your appreciates comments.
thanks!
(we are in king parkview hotel from beijing, room number 525)