Hi, is there any reason why I can't book two seats in one name to get some extra room flying Sydney to Vancouver return (probably Air Canada (although prefer not) or Air New Zealand (anything direct)? I know I'd have to find seating where there are only two seats and/or the arm rest lifts up but it would be a lot cheaper I think than Business class or premium economy. I cannot sleep unless I can lie down (even if I'm scrunched up over two seats). I saw something ages ago about Air NZ offering 'twin seating' but this was only an 'at check in' option and I want to know I have definitely got my two seats. Can anyone help?