Because users do not need to transfer their assets to the exchange, decentralized exchanges reduce the risk of theft from hacking of exchanges. Decentralized exchanges can also prevent price manipulation or faked trading volume through wash trading, and are more anonymous than exchanges which implement know your customer requirements.
There are some signs that decentralized exchanges have been suffering from low trading volumes and market liquidity. The 0x project, a protocol for building decentralized exchanges with interchangeable liquidity attempts to solve this issue.
The official website of Travala talks about the strategic partnership closed between the company and Booking.com.
In order for the collaboration to be fruitful, Travala has integrated all the accommodation listings from Booking.com, which are available in more than 200 countries, at 100,000 different destinations.