Our family seeks a 4-berth soft sleeper compartment between Hangzhou and Guilin, leaving on July 12 or 13 and returning on July 17 or 18. We are living in Hangzhou at present in an apartment; delivery here could be tricky, but we would be happy to pick up tickets in Hangzhou if possible. Can your agency help? We would like an air-conditioned fast train if possible -- is the K859 a good train? We need tickets for four people -- two adults, two kids. Thanks for any advice you can provide.