How do you say

We have our holiday planned for next month.

..in Chinese?

我们已经计划好下个月一起去旅行了。

wǒ men yǐ jīng jì huà hǎo xià gè yuè yì qǐ qù lǚ xíng le 。

How do you say "My friends and I are planning a trip, and we have everything worked out." in Chinese?