.TRAVEL domain names are available to everyone who provides or plan to provide services, products or content in or to the travel industry. New travel startups are welcome, and that includes every new travel content provider. Some TLDs, including .TRAVEL, have special requirements before you can register the domain name. In order to register .TRAVEL domain names, the registrant has to provide a UIN "Unique Identification Number".
A UIN may be obtained immediately here: http://www.travel.travel/obtain-uin/