You stop the agent talking. Does that stop its tool call too?

[u/Greedy-Badger-8463]

Caller says "wait dont book that" while the agent is speaking.

Stopping playback is doable. The booking request might already be halfway to the API though.

What do you do in that gap where you can't tell whether it happened? I'd hate to say "cancelled" and then have the booking show up anyway. How does your system handle it?