The important factor is to keep these two operations seperate, otherwise it will take the slightest delay in either flights to create havoc. The girls will be tagged and handed from one carer to another, the key is to have one delivery point in Bangkok. I once tried to have two lots of passengers, one pax, an unaccompanied minor picked up by the hotel from two different flights, it was a disaster, I have learnt to stay at the service desk and let them come to me