Games : How do I get the quest from the brown aliens of Silence?

I'm playing the campaign in the game Galaxy Trucker on Android and I've arrived at the planet Silence, home of the brown aliens. The game tells me that there is a quest available if I speak to the natives, but I cannot get them to give it to me. All of the conversation options end with me telling them to talk to me and them ending the conversation in a huff.

How do I get the quest on this planet?