Made me laugh. My org has a completely automated online self-service travel booking system that even includes dedicated support from a corporate travel agent - and I recently needed a single flight booked for a day in another city (about the simplest travel you can do) and somebody "loaned" me their PA to do the booking because it takes much time and knowledge to do it right. Part of the problem is that the org has implemented a gigantic set of strict rules about what kinds of flights can be booked to save money. So it can be quite hard to select the right flight that won't get knocked back further downstream or alternatively navigate through the forms to justify why you aren't selecting a compliant flight...