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: Hey there I'd love to buy your 2014 Specialized Fate Expert Carbon 29 Medium!
Seller: This is a great bike I can assure you, and I can deliver it to your place. My price is $2600. If you know bikes, then you'll know this a great deal.
Buyer: Are you sure you can't go a tad bit lower. I was trying to get around half of that price, but I understand that this is a very high quality bike and has very good features. I was thinking around $2300
Seller: $2300 works for me no problem.
Seller:
Buyer: Yay! Thank you so much! I can't wait until it gets delivered, I'm so excited!
Buyer:
bike