Connecting multiple agents

Here is my DUT which has AHB interface to control the registers of the DUT, we have 2 more interfaces REQ and RDATA
The REQ has SIZE based on the SIZE the RDATA should be generated (RDATA is generated from testbench )

My plan of verification is have one AHB agent to drive the stimulus on the DUT
And 2 more agents one PASSIVE for REQ and one ACTIVE for RDATA
How do i connect these agents and how can i get information of REQ so that i can get RDATA generated is this in sequence ?


                 ----------------------------------------
                |                                        | 
                |                                        |                       REQ
 AHB            |              DUT                       | ------------------->
     ---------> |                                        | <-------------------  RDATA
                |                                        | 
                |                                        |
                |                                        | 
                 ----------------------------------------


Thanks