However, early booking is strongly recommended, especially on longer flights as the seats are allocated on a first come, first served basis. (virginatlantic.com)
I was on another long flight with my mom on our way back and my kids were 10 months old then. (havebabywilltravel.com)
The plane comes with two configurations of either 55 business class seats, or 15 business with 30 first - class seats on longer flights. (cnbc.com)