旅游给付中涉及三方当事人，即旅游者、旅行社与服务经营者，他们之间存在两类不同的合同法律关系。

The tourist performance involves three parties: tourist, tourist agency and service operator. They are united with two kinds of contract legal relationships.

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海洋国际旅行社有限责任公司是经国家旅游局批准成立的中央一类社。

Ocean International Travel Service is a limited liability company by the China national Tourism Administration approved the establishment of a central community.

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