こんにちは!
ご質問ありがとうございます。
ご質問について、いくつか言い方が考えられますが、例えば、
Be cautious when approached by locals claiming to be government-approved tour guides, informing you that your ticket is invalid, announcing train cancellations, or directing you to specific service windows or offices. Unfortunately, many of these individuals may be deceiving tourists. It's best to trust the information you've verified yourself rather than taking their word for it.
と言えます。
役に立ちそうな単語とフレーズ
deceive だます、欺く
参考になれば幸いです。