You need to get a handle on all relevant travel documents well in advance of your departure date. When you receive your flight tickets (electronically) from KILROY, please check them thoroughly and make sure that all dates and destinations are according to your expectations.
Even though flight tickets are electronically stored with the airlines, you should print and bring along you e-ticket numbers and reference codes/numbers. In most cases you will also need them for check-in. The same goes for any kind of travel product which you have booked from home; hotel vouchers, hostel vouchers, car rental/motorhome vouchers and adventure tour vouchers etc.