According to an example implementation, a method comprises generating a graphical asynchronous messaging user interface including an input region containing a set of digital images of items and an activity region displaying graphical messaging elements respectively representing messages sent between a consumer node and a provider node, displaying the graphical asynchronous messaging user interface, receiving a first user input from a user via the input region selecting a first digital image associated with a first item from the set of digital images of items in the input region, generating a first message including the first digital image associated with the first item, including the first message including the first digital image associated with the first item in a first messaging element in the activity region displayed to the user on the display device, and transmitting the first message via a public computer network as a request to the provider node.