Abstract: In general, the subject matter described in this disclosure can be embodied in methods, systems, and program products. A computing device can present a messaging user interface and receive user input of a typed message through interaction with the messaging user interface. The typed message can be sent for distribution to a second user account. The computing device can receive a system-generated response to the typed message that was generated by a searching system based on content of the typed message. The system-generated response to the typed message can be presented in the messaging user interface along with an indication that the system-generated response was generated by the searching system.