Possibility of getting email confirmation instead of paper ticket for reservation

Hi there,

I called earlier and just want to confirm that I could get email confirmation instead of paper ticket, which I could use to exchange for paper ticket at rail station myself.

If so, where will I exchange ticket at Beijing West Station? Is it automated ticketing machine or ticket pickup window? How long does it general take to pick up ticket during the spring festival period? I'd like this information to make sure I give myself enough time to travel from airport to rail station and then pickup the paper ticket. Also if I arrive earlier or later than the departure time of the train, can I exchange at the ticketing window? Thanks a lot for your help.