Passengers
The default number of travelers is 1. If you have more than one adult, hover over 1 and you will be able to increase the number up to a maximum of 9.
The drop-down list enables you to change the Passenger Type Code (PTC) of the traveler.
To add a traveler using a different PTC, press the + symbol.
You can specify the ages of the passengers by selecting the Passenger preferences link in the Flight Search panel. Some countries exempt passengers of a certain age from paying taxes.