Client sent me a swatch color. How do I find its Pantone equivalent?

Here is what the client sent: http://ift.tt/1LKrldN

I'm not familiar with this system. How can I match the color "New Smile?"

Great design resource

100 Things Every Designer Needs to Know About People (Voices That Matter) Submitted December 01, 2015 at 06:31AM by earthtokeebs http://ift.tt/1l4hJpf