Once flights are showing, you can type or say any of these at any point in the conversation:
Airlines
●Show only Iberia / Just Iberia — narrow the list to one airline
●Hide Ryanair / Exclude Ryanair — remove one airline from view
●Add Iberia — bring a hidden airline back
●Show all airlines / Hide all airlines
Connections
●Direct / Nonstop — direct flights only
●Connect / One stop — allow connections again
Picking a flight
●Select Swiss / Choose Lufthansa — picks it, or asks which one if there's more than one
●JU0353 or 15:25 — flight number or departure time, on its own or as the answer to "which one?"
Picking a fare
●Select Light / Comfort Green — the fare name
●191 — the fare's price
Undo
●Undo / Go back / Never mind / Cancel
