Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
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the tripadvisor media group companies have no liability and will make no refund in the event of any delay , cancellation , overbooking , strike , force majeure or other causes beyond their direct control , and they have no responsibility for any additional expense , omissions , delays , re-routing or acts of any government or authority . 

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