My father is having an Indian passport and it has the name as following
Given name = XXX YYY
Surname = Blank
When I applied for US tourist visa, they gave him the same but in that his name is shown like
First Name = FNU
Last Name = XXX YYY
Now I am confused that while booking a flight what should I use for First and Last names? I should go with the Passport or with VISA?
XXX
in the other field. If he doesn't have a single name, and the passport has both names in the given name field, then you should book the tickets normally (and get the passport fixed).