public String QueryItinerary(Transaction context, Customer customer)
{
var buf = new StringBuilder(1024);
buf.Append(Flights.QueryReserved(context, customer));
if (buf.Length > 0)
{
buf.Append(',');
}
buf.Append(Cars.QueryReserved(context, customer));
if (buf.Length > 0)
{
buf.Append(',');
}
buf.Append(Rooms.QueryReserved(context, customer));
return(buf.ToString());
}