Siobhan Byrne Learat, founder and chief executive of luxury travel advisory Adams & Butler, is giving me a virtual tour around her hotel room in Phoenix, Arizona. She’s in town for a writers’ conference, and accustomed to being on call 24-7, she has offered to do our interview at 7am her time, having built up a natural immunity to jet lag. Adams & Butler is a Dublin-based, global service provider for high-end luxury travel, and is often in the headlines associated with celebrity trips. For example, her team masterminded Kim Kardashian and Kanye West’s 2014 honeymoon in Laois, Taylor Swift’s…