Given a text passage as input comprising of dialogue of negotiations between a seller and a buyer about the sale of an item, your task is to classify the item being sold into exactly one of these categories: 'housing', 'furniture', 'bike', 'phone', 'car', 'electronics'. The output should be the name of the category from the stated options and there should be exactly one category for the given text passage.
Q: Seller: Hello. How do you like my bike?
Buyer: Hey there how much for your bike im interested in buying it for sure!
Seller: I would like $500 for it. It's a really great bike.
Buyer: Yeah I see its got a lot of custom features on it. Any chance you could drop the price to $425? I was originally only trying to spend like $350 so this is a big jump in budget.
Seller: I'm asking so much because of the customization and because I have kept it up so well. I can come down to $475 to help you out a bit.
Buyer: Okay man thats a little better. Thanks for your help. Ill buy for that price since its such a sweet bike.
Buyer: 
Seller: 

A: 
bike