TouristExchange works in following simple steps.
Once you have submitted the query, you will find your queries in your inbox in web and also under queries section in your mobile app.
You will be able to see responses coming from service provider for your query in mobile as well as web. You can ask questions to service provider and customize your trip according to your needs.
Once you are comfortable with the quote from service provider, you can request to generate the invoice. Your invoice is generally means service provider has blocked the necessary services for you and this block is for a limited period within which you have to make the payment to confirm the booking.
Once the payment (partial or full as advised by the service provider) is done, you will receive a booking voucher.