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.

Buyer: Hello, I am interested in your bike. Is it still available?
Seller: Yes, it is. It is in excellent condition and is slightly used.
Buyer: Great! I am wanting to get a bike ASAP and am willing to pay cash. Are the tires in good condition?
Seller: Yes they are.
Buyer: Would you be willing to take $350?
Seller: I can't go that low. I am willing to negotiate some but not go that low. I would be willing to drop the price to $500.
Buyer: Would you take $400. That seems fair since the bike is used.
Seller: I would split the difference with you at $450 and I will deliver the bike for you.
Buyer: Okay, if you are wiling to deliver the bike then I will pay $450.
Buyer:
Seller:
bike