The agency associated to a reservation that handles its rates in USD will automatically convert it to Chilean Pesos at the moment of crediting the prepayment in its account during the check-in in Novohit with the current exchange rate. Likewise, when making the automatic rental charge during the night audit, it will convert the rates from USD to Chilean Pesos.
The above is the process that already occurs with agency reservations that handle rates in USD.
Complementing the operational solution for the issuance of the invoice, in this case they can issue their invoice on the same day of guest check in (prepayment invoice), this way they will have the invoice with the date they want and at the same time the prepayment will be credited to the guest's account.
Therefore, it is not really necessary to duplicate rates since the system makes the conversion to MN if you are capturing in USD and they can be assigned in the season according to the type of currency of the agency regardless of the type of currency in which they were defined. The only reason to have them in two currencies may be that they handle different amounts for the fixed components depending on whether it is a USD or MN rate.