The last time Lia went shopping at Nordstrom's department store she had a very pleasant experience. When she entered Nordstrom's, she asked a sales associate named Sarah for assistance finding a pair of jeans, a pair of shorts, a skirt, and matching tops. Sarah enthusiastically agreed to help and treated Lia like royalty throughout her two-hour shopping trip. Sarah stayed with Lia the entire time she was in Nordstrom's and showed her a number of different styles of jeans, shorts, skirts, and tops. Sarah brought Lia additional items while she was in the fitting room and offered her advice on accessorizing her outfits. After the sale, Sarah thanked Lia for her purchases.

 Lia's experience at Nordstrom's is an example of which type of service encounter incident?