map a request response in python twisted

Question

I have started to learn Python twisted. I have a basic requirement to map the request and response for a TCP client. The client can send any request anytime based on some condition and it expects a specific response for that request from a server. How I could map a request-response pair. A sample code of what I want. Also, the server could send an arbitrary message which does not map to any of client request.

class MSOProtocol(Protocol):
    def __init__(self):
        self.client_id = uuid4()
        self.messagePair = collections.OrderedDict()

    def connectionMade(self):
        log.msg("Device connected to TSIF")
        self.doOperation()              

    def connectionLost(self, reason):
        log.msg('Device lost connection because {}'.format(reason))

    def sendMessage(self, data):
        log.msg('Device sending...str(msg)'.format(data))
        self.transport.write(data)

    def dataReceived(self, data):
        log.msg('Device received {}'.format(data))
        #how do I map the response with my request

    def doOperation(self):
        CONDITION = "rainy"
        if condition == "sunny":
            self.sendMessage("sunny weather")


class DeviceFactory(ClientFactory):
    def buildProtocol(self, addr):
        return MSOProtocol()

def main():
    log.startLogging(sys.stdout)
    reactor.connectTCP('127.0.0.1', 16000, DeviceFactory())
    reactor.run()

if __name__ == '__main__':
    main()