Certainly! Here is the revised version in fluent, natural English, preserving the HTML tags and formatting:
The relative hails from a quaint rural hamlet, and this marks his premiere journey to the metropolis. He’s experiencing some anxiety due to the substantial vehicular flow. He’s unaccustomed to such extreme gridlock. Might you lend a hand in ensuring his secure passage across the avenue? Scrutinize the conveyances carefully and respond promptly in Uncle Express Go Go.
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