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I rely on computers to book seats on/in air flights.

The answer to the above question is given as on but I believe it should be in. Please suggest.

Seema Bhukar
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1 Answers1

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On is correct. Probably because on is also the preposition for using most of the forms of transportation that you need to book space for.

See: "In" and "on": How can I decide which one to use for vehicles?

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MrTheWalrus
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