将以下文本逐句翻译为英语。 
我想从上海到北京坐高铁。我想坐到前排的位置。请告诉我离开上海的时间表和要到北京的时间。
I want to take the high-speed train from Shanghai to Beijing. I want to sit in the front row. Please tell me the schedule for leaving Shanghai and the arrival time in Beijing.