Hello everyone. I am wondering if anyone could help me please? I'm flying to Thailand with my Thai wife in August and will be applying for the non immigrant o visa for the three month extension and then when we are in Thailand applying for the year extension . My concern is we have booked one way tickets and on the TDAC form online it asks for arrival and departure details. As we only have arrival details and no departure details would this affect the online application process?. Any help would be much appreciated.