Information processing apparatus, information processing method, and storage medium

An information processing apparatus comprising:

• a memory configured to store instructions;
• and
• a processor configured to execute the instructions to:
• capture facial images of a plurality of users, using a camera from at least one stage, among a plurality of stages between a check-in stage and a boarding stage, wherein the plurality of stages include a first stage;
• compare the captured facial images of the plurality of users with a plurality of registered facial images acquired in the check-in stage;
• update status information of each of the plurality of the users corresponding to each of the first stage;
• identify one or more first users among the plurality of users, with a recently completed state for the first stage;
• identify, among the plurality of users, an uncompletion user with an uncompleted state for the first stage at deadline time of the first stage based on the identified one or more first users;
• identify a position of the uncompletion user by using videos captured by a plurality of surveillance cameras;
• generate an alert indicating that the uncompletion user has not completed a procedure of the first stage, the alert including information on the position of the uncompletion user;
• and
• transmit the alert.