I am writing a script for a short film, and I need help with the dialogue for a scene. The scene involves two characters, Alex and Jamie, who are discussing a surprise birthday party plan for their friend, Casey. The dialogue should be natural and include details about the party venue, the guest list, and the timing. Please provide a script for this scene that includes at least 3 bullet points of specific details about the party plan, and use the word "surprise" at least 3 times.
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