帮忙翻译一句？汉译英（很乱，麻烦各位了）

i planned to begin to work in Italy on the nineteenth.
but ther was no plane ticket to book on the seventeenth.

because there is no plane directly flying from beijing to milan,i
have to fly to holland first ,which makes me to take a longer time
to get to milan.

because of that above , i want to leave beijing on the sixteenth.

I would begin work in Italy on 19.
Since there is no direct flight from Beijing to Milan, I have to change plane in Holand, which would cost much time. Therefore, I won't have enough time if I take the plane on 18, but the plane of 17 has been fully booked. As a result, I have to take the plane of 16 to leave Beijing.

我本打算19日开始在意大利工厂工作； 但是17日的机票已经订满；
I intend to work at Italian factory on 19,but the Plane ticket take off on 17 has sold out.

由于北京没有直飞米兰的飞机，所以要到荷兰转机，需要的实际比较长
18日的飞机就很紧张；
owing to there's no direct air from Beijin to Milan,so we need to take another plane at H