Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
tripadvisor and its affiliates will not interfere with reservations arbitrarily , but we reserve the right to cancel or not process a reservation because of certain extenuating circumstances , such as when a reservation is no longer available or when we have reasonable cause to suspect that a reservation request may be fraudulent . 

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