Atkins recomends that while on vacation you do maintanance levels instead of induction. That way you don't feel deprived and go completely off plan.

Why not see if you can try this. Have bunless burgers, lite beer, veggies if you can find them and so on. Don't go completely over bored and end up with a tummy ache.

Or you could wait to start induction until after your trip.

Anotyher option is instead of starting with induction, start by just cutting back oncarbs such as flours and sugars until after your trip, then go on induciton. Kind of get warmed up to make the withdrawls of induciton much easier.