A method includes: extracting first structured information from a first screen in response to a first operation performed by a user on the first screen, and generating a first prompt message based on the first structured information; extracting second structured information from a second screen in response to the first operation performed by the user on the second screen; and when the first time and the second time have an intersection, and the first address is different from the second address, automatically changing the first time in the first prompt message, so that a changed first time and the second time have no intersection.