Use these 10 tips to develop your creative writing prompt . Here's a story example
Read the prompt multiple times and make a good understanding
Create a number of potential story ideas
Choose one of the ideas as your theme
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Create main characters by describing them with name, background and personality.
Sketch a rough outline of the plot with beginning, middle and end
Introduce a problem that your main character faces and must overcome
Describe settings, dialogues, characters vividly so that reader visualizes the story
Edit your writing for spelling, grammar, clarity etc.
Make final tweaks for smooth language flow, completeness and conveyance of the central message.