text: It currently operates three flights a day between Hanoi and Dien Bien?
classes:  No, the flights the airline offers between Hanoi and Dien Bien have some with round - trip tickets.  Besides, the flights the airline offers between Hanoi and Dien Bien have some with round - trip tickets.  Yes, the flights the airline offers between Hanoi and Dien Bien have some with round - trip tickets.  Meanwhile, the flights the airline offers between Hanoi and Dien Bien have some with round - trip tickets.