How does that differ from a human having the same conversation?
If I call a restaurant and say "Can I have a reservation for 6 at 8:00" and they write down a reservation for 8 at 6:00 without repeating it back I won't know until I show up at 8:00 with my 5 friends.
True -- I was mainly snarking about people with poor communication practices, not the technology (which seems great -- a godsend for people like me who hate phone communication).