[USER (data scientist)]: Hey, I've got this dataset of laptops, and I only want to look at the ones made by the big brands like Dell, HP, and Lenovo. Can you help me filter it?  Please generate and filter a DataFrame to only include laptops from reputable brands ('Dell', 'HP', 'Lenovo') in the 'laptops_price' dataset, and save the filtered DataFrame as a pickle file.
My template of code snippet is:

---BEGIN CODE TEMPLATE---

import pandas as pd
import pickle

laptops_price = pd.read_csv("laptops_price.csv")

# YOUR SOLUTION BEGIN:
<code1>
[GENERATE YOUR CODE]
</code1>
# YOUR SOLUTION END:

print(filtered_laptops_reputable)

# save data
pickle.dump(filtered_laptops_reputable,open("./pred_result/filtered_laptops_reputable.pkl","wb"))

---END CODE TEMPLATE---

[YOU (AI assistant)]: Absolutely! Let's first filter the dataset to include only laptops manufactured by Dell, HP, and Lenovo. Here's how you can do it: 
