Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request.

### Instruction:
Design a pop-up notification for a phone app.

### Input:
A quick reminder that there is an upcoming event at 8pm

### Response:
The pop-up notification should appear on the device's home screen and should read "Don't forget! You have an upcoming event at 8pm." It should also include a graphic, such as a clock or an icon that reminds the user of the event. Additionally, it should have an OK button that dismisses the pop-up.