R12 Third Party Travel System "Concurr" integration with Payables

Hello Gurus

I have the following scenario one company has decided to integrate a Travel & Reservation solution for all the employees.

1.-Employees logged in Concurr to Book either Airline or Hotel or Rental Car.

2.-Only the Airline ticket will be charge in an AMEX Company Corporate Card, the other expense will be paid by the employee either in cash or their own credit card.

3.-Once the employee's finish their trips , they will capture their expense reports in Oracle i-Expenses i.e. meals, hotel, taxi, rental car, but not the airline ticket.

4.-The Expense will be approve in Oracle eBS either using AME Workflow Approval or PO Hierarchy.