public FlightEndpoint(FlightTicket ticket, IReadOnlyList <FlightLocation> locations)
{
_ticket = ticket;
_locations = locations;
}
internal FlightEndpoint(Protocol.FlightEndpoint flightEndpoint)
{
_ticket = new FlightTicket(flightEndpoint.Ticket);
_locations = flightEndpoint.Location.Select(x => new FlightLocation(x)).ToList();
}