1.I am trying to arrange the meeting with Mr. Sakai.

这是安排约会的说法。

2.The first, the second and the third of November, but he is only available on the first and the second...that' s the Monday and the Tuesday.

he is only available指的是什么时候有时间。另外一种情况，如果接电话的时候某人不在，也可以说he is not available.

3.Set up an evening meeting?

安排在什么时间，可以说set up,也可以像文中所用的make it some time

4.Mr. Sakai arrives at the airport at nine o' clock on Monday morning and it' s a nine hour flight.

用一般现在时表示将来计划或安排好的事情。

5.Change our ten o' clock meeting with Mr. Clark.

这个句型可以用来表示更改日期或时间。

6.You' re giving a dinner party on the 4th.

现在进行时也可以用来表示计划或安排好的事情。