By the customer to purchase but before tickets sold through ticket and the Distributor because of the cheaper buying direct are subject to service other matters like the train or travel destinations.
By the first customers to purchase tickets through an airline ticket and ID because it is cheaper than buying directly. There may be other services such as hotels or tourist train.
By before customers will buy tickets through a ticket agents because of cheaper than buy Charlotte. There may be other services such as hotels, a train or tourist attractions.