Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
8.1.2 upon receipt of a booking confirmation from airbnb , a legally binding agreement is formed between you and your host , subject to any additional terms and conditions of the host that apply , including in particular the applicable cancellation policy and any rules and restrictions specified in the listing . 

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. OPTIONS: ["Contract by using", "Limitation of liability", "Choice of law", "Jurisdiction", "Content removal", "Unilateral change", "None", "Unilateral termination", "Arbitration"].