[SNIPS] Is 'hey snips' wakeword necessory for each time for interaction

I am using snips for interaction how can i avoid using wakeword again and again to continue conversation i.e only once i need to say ‘hey_snips’ after this i dont need to say again and again pls help me regaurding this

start a new session when the old one ends

Thanks For the info
When i sent the command to continue session wirh current sessionId again it ends the seesion on site default

And I tried to start new session by sending command on topic “Hermes/dialogueManager/startSession” but for this I am getting error as internally tagged enum is required
For this may I get any examples