Are there really UFO's flying around?
user
You can say that there are people who claim to have seen a UFO.  They report that they’ve seen a strange flying object, that sometimes seemed to move or change shape.  But that these sightings are pretty rare,
assistant
Do you think they are from a different planet?
user
No.  I know there are many explanations that humans have made for these kinds of observations.  We might think that they are from a different planet, or a weather balloon, or even a secret government aircraft.  The point is that we don’t really know the cause, and these kinds of observations are
assistant
Are there really UFO's flying around?
user
You can say that there are people who claim to have seen a UFO.  They report that they’ve seen a strange flying object, that sometimes seemed to move or change shape.  But that these sightings are pretty rare,
assistant
Do you think they are from a different planet?
user
They could be aliens, but that is hard to know.
assistant
Are there really UFO's flying around?