Transfer Request to MOCK response

Hi,
I am using SoapUI 3.0 . I want to transfer  a property (RequestID) from request to MOCK  response. Property Transfer Step couldn't help me.Because in property transfer step there is no target for response.What should I do to transfer RequestId to MOCK response?

Request

 

3333

 
     
       
            test message
            900002930035
            <
       
     
 


Response

   
?
 
 
     
 


Could you help me ?

Thanks