Some aspects as disclosed herein are directed to, for example, a system, non-transitory computer readable medium, and method comprising receiving, at a computing device, a selection of an activity for a user to perform. The computing device may determine an estimated amount of time to complete the activity. A token for the activity may be generated, and generating the token may comprise initiating a timer for the activity. The computing device may determine a position of the user within a building location. Based on the timer and the position of the user, the computing device may determine that an amount of time to complete the activity is predicted to exceed the estimated amount of time to complete the activity by a threshold amount of time. In response to determining that the amount of time to complete the activity is predicted to exceed the estimated amount of time to complete the activity by the threshold amount of time, a notification may be generated, the notification indicating that the amount of time to complete the activity is predicted to exceed the estimated amount of time to complete the activity by the threshold amount of time. The notification may be sent to at least one of a mobile device associated with the user or an assistant's computing device at the building location.