How do you say

I plan to buy some new furniture in three months’ time.

..in Chinese?

我打算三个月后买一套新家具。

wǒ dǎ suàn sān gè yuè hòu mǎi yī tào xīn jiā jù 。

How do you say "I had planned to go to the movies with a friend but had to cancel at the last minute." in Chinese?