My Lenovo g510 laptop has 1 jack! Looks like this?

I purchased a headset it has 2 plugs one for the mic and one for the headphones! Is there anyway to make this compatible! The symbol shows a headset with a mic on it! So I'm wondering if there's some kind of splitter or something I can but to make this work? Please help I got a great deal and don't think I'll make much If I return them

Normally a headset jack has three contacts on the plug, while a mic jack has two. A combined headphone and mic jack has four contacts on the plug. Look for an adapter such as:

http://www.amazon.co.uk/...014H6WNCK/

If you look at the two sockets, you will see one is marked with a headphone symbol and the other has a mic symbol.