$2 billion worth of nonrefundable airline tickets expire every year without being used. The majority of airlines don't allow you to change a name on the ticket so passengers can’t give their tickets to anybody else. If you can’t fly – you lose money.

Skyscanner is the worlds leading travel search engine used to find the cheapest flight deals and is here to help. Introducing NameScanner. It’s a service that allows passengers to transfer unused non-refundable tickets to their namesakes. 

In many countries on domestic flights passengers are not required to provide their IDs. 
On international flights they can provide this information later online. 

For example over 45 000 people have the name "John Smith" in the US.
Thanks to Namescanner one John Smith will be able to give his unused ticket to another John Smith!
Airlines allow passengers to change the time of departure, and even the destination, so the second John will be able to fly anywhere for a lower cost!
And the first John will get some money back!