Invoke a web service from MOCK (SOAPUI)

Question

Hi All

I am using SOAPUI Pro 3.5.1 and trying to make POC MOCK server. Here are the things i am looking, i will point my web service requests to mock server, depending on the match on one of the fields in the input mock response is populated which is good till this point. But if it didn't find a match i would like to invoke a original web service add service response to mock. Next time when i get the same request it should pull it from the mock. I have looked at Mock server documentation, it says we could do this above functionality from dispatch script , i need some help to get started.

Thanks