I do get that tipping isn't always a thing in your countries, but that doesn't mean you can't thank someone in some way who goes above and beyond in helping you. (although if you tip wait staff at restaurants, taxi drivers and hairdressers, you actually tip pretty much the same way we do over here....lol) The people who helped me had to get me on and off shuttles to get from one gate to another, up and down ramps-one of which was unreal in the number of levels of steep ramps they had to go down to get to the plane; push me up steep inclines and hold onto me down some other steep areas, practically run with me to catch one of my planes in time, wait with the wheelchair while I used the restroom, and so on. It really was a job to care for me and I appreciated not only their hard work, but their cheerful attitudes.
You can carry small tokens of appreciation with you in case you do feel like thanking someone, even something as simple as a thank-you note. I often bring a nice box of chocolates, some nice fruit, or something homemade, for my hospital room to offer to those who come in to help me. This last time I had hubby bring me some nice peaches, nectarines and plums from our trees to share.