What happens if you dont turn up to the airport with your full party? My partners daughter was coming on holiday with us but she's fell out with dad. Dsd mum is saying she's doesn't want to come anymore but dsd says she does. We fly in 4 weeks so need to start checking in soon. I dont want to cancel her place then she wants to come but then im worried if i check her in then we get to the airport and she's not there can we still fly?