How to say "I don't know./It depends."?

[haikuma]

For example, if someone asks you "Do you want to take this job"?
And you kind of haven't decided or are still unsure.
The answer wouldn't be a straight ”はい”　or ”いいえ”.

How do I answer like "I don't know. It depends." or "I don't know. I haven't thought about it."

ありがとうございます。

[Bueller_007]

まだ決まっていません。= I haven't decided.

考えておきます。 = I'll think it over.