sentences:  At the start of the 1978/79 winter timetable period, Benghazi joined the network.At that time, the airline also increased frequencies between London Gatwick and Paris Charles de Gaulle to seven daily round-trips on week days, with flights operating at two-hourly intervals.The addition of twice-weekly flights to the Libyan port city of Benghazi to the existing five weekly services to Tripoli meant that for the first time BCal was able to offer its passengers daily flights to Libya, an important market for profitable, oil-related business travel.