Mark

Hello @skills-up For LFS we are using sync version. You can check that [here](https://github.com/Travelport-Ukraine/uapi-json/blob/master/src/Services/Air/templates/AIR_LOW_FARE_SEARCH_REQUEST.handlebars.js) For now we are supporting only 1G provider. There is no support of any other.

Hi @Dezaimasu There are no plans to support modification request for now. But you still can [.book()](https://github.com/Travelport-Ukraine/uapi-json/blob/master/docs/Air.md#book) tickets and pass documents as we [prefill](https://github.com/Travelport-Ukraine/uapi-json/blob/0649e5e1b364d79fd46400930c642c8fa050c22d/src/Services/Air/transformers/add-meta-passengers-booking.js#L26) them with input params.