This is a hypothetical question ... when I've looked on airline websites and booked tickets they normally have the option of adult tickets, children tickets 2 - 12 (or there abouts) and infant tickets 0 -2. With the infant tickets they are lap children.
So my question is, if you wanted to buy a ticket for an infant but wanted them to have their own seat, would it be as simple on line as literally choosing a child ticket for them and paying the child fare instead of the infant fare, or when you add in a DOB would that muck up the booking? Or is this a case of having to phone up and book tickets. I am apprehensive about phoning up, as I feel errors could occur, or misunderstandings, whereas on line I am responsible for checking details etc