Interaction device, interaction method, and storage medium storing program

An interaction method in which a computer executes processing, the processing comprising:

• acquiring an alertness level of an occupant of a vehicle;
• requesting an utterance from the occupant in a case in which the acquired alertness level is below a threshold value;
• identifying a rest point at which the vehicle can stop;
• measuring a cycle spanning from initiation of an interaction until the alertness level falls below the threshold value again;
• and
• repeatedly requesting an utterance from the occupant at a regular interval that is shorter than the measured cycle during a time period from notifying the occupant that the rest point has been set as a destination of the vehicle to the vehicle arriving at the destination.

A non-transitory storage medium storing a program executable by a computer to perform processing, the processing comprising:

• acquiring an alertness level of an occupant of a vehicle;
• requesting an utterance from the occupant in a case in which the acquired alertness level is below a threshold value;
• identifying a rest point at which the vehicle can stop;
• measuring a cycle spanning from initiation of an interaction until the alertness level falls below the threshold value again;
• and
• repeatedly requesting an utterance from the occupant at a regular interval that is shorter than the measured cycle during a time period from notifying the occupant that the rest point has been set as a destination of the vehicle to the vehicle arriving at the destination.