Just booked 2 tickets for USA for DD and myself. Travel agent mentioned that immigration won't refuse entry but that it will involve lots of questions because I am travelling without DD's father and that her passport surname is different to the name on my passport and the name she is known by. They said to get a letter from her father to say he gives me permission to travel with DD. But then said anyone can write the letter and just forge it! Anyone come across this? I cannnot find anything USA immagration web site not USA embassy.
Both DD have UK passports and are covered on visa waiver scheme.