The sampled results in Figure 4 show that the Seq2Seq and the RL model can generate reasonable responses for intervention.
as is to be expected with machine-generated text, in the other human evaluation we conducted, where Mechanical Turk workers were also presented with sampled human-written responses alongside the machine generated responses, the human-written responses were chosen as the most effective and diverse option a majority of the time (70% or more) for both datasets.