The conversation between human and AI assistant.
[|Human|] Calculate the total cost of purchasing 5 laptops at the price of 899 each.
[|AI|] The total cost of purchasing 5 laptops at the price of 899 each is `5 x 899 = 4495` dollars.
[|Human|] 
Calculate the total cost of purchasing 5 laptops at the price of 899 each.