Hello, We have plan go to Beijing and Xian between 20 Aug-25 Aug with my family (adult 2, Child 1, 6 years old)So, could you please suggestion trip plan and train / flight convenient to travel for my

i suggest that you stay in Beijing from Aug. 20 - 23, and take an overnight train to Xian, then the rest two days in Xian city. Since you don't have much time, i also suggest that you book a tour package with an agency so that you can visit as many attractions as possible.