Is it okay nowadays to use the phrase **"it's a pity"** in the everyday conversation in the contexts like in following example:

> 
> "Please how do I get to airport?"   
> 
>  "It's a pity, I don't know."
> 
> 
> 

If not, what would be an appropriate equivalent?

**Edited (added):**

As it follows from answers, this phrase is almost never used by native English speakers. Could you please specify how this phrase sounds for native speaker - as too formal or as archaic or anything else?