Let's say you're planning your next summer vacation. So you go on the internet and look for a few different destinations you'd like to visit this year.
You find a trip to Rome, a city you want to visit, but it's not something you're too excited about.
The travel package includes a plane ticket and a stay at a hotel for a total of $2000.
This package is non-refundable, but you didn't find anything better, so you decide to book the trip.
Then the next day you do some more searching and you find another potential trip. This time it's to Paris, your favorite city.
The travel package comes with a plane ticket and it includes a stay at a much more luxurious hotel.
For the cherry on top, the trip is on a discount and it costs $1000. Again, the ticket is non-refundable.
But since you'll be taking two separate breaks this summer, you decide to book this trip as well.
However later that day you realized that you've made a small mistake. You accidentally booked the trip to Paris, for the same week as your trip to Rome.
You're unable to change the dates, because the hotels are fully booked, and you can't refund the tickets. You're now faced with a tough choice.