回複：回複：UA-AA

I tried to book ticket in Dallas, but it was more expensive. so my father booked it in Beijing.Jap Airline sometimes has good deal. I know AA is more expensive than others, but at that time, my friend's parents also planed to come to Dallas on the same date and they already booked the ticket. for convenience, my mom bought this line. it is not open ticket, since she just stay here for 3 months...if you need I will get that travel agency number in beijing for you.