I can't for the life of me figure out how to get a quest NPC to spew out contiguous responses without player intervention in between.

Player activate NPC dialog ...
PL > Do you need something?
NPC > Yes, I need ... blah blah blah, and ...
NPC> more blah blah blah ... Can you help?

I can add more "topic infos", but I can't seem to figure out how to order them or make more than one play in a given sequence.

Can anyone point me in the right direction or to a tutorial I probably missed?

Thanks.