Service Design looks at the entire customer journey and designs each interaction and touch point to be useful, usable and desirable. At the core of both Service Design and UX is the end user / customer. You have to understand your customer’s needs, expectations and influences before you can effectively deliver an exceptional solution and customer experience to them.
To better understand the value of Service Design and some of the research and design techniques involved, I would encourage you to take a look at this excellent presentation from Marc Stickdorn at UI20 conference in Boston in November 2015. This presentation takes an in-depth look at Journey Mapping, Customer Research and Prototyping, which are all very useful in Service Design.
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