Classify the given hotel review based on the sentiment it expresses into two classes: negative and positive.
One example: I stayed at the Hilton Chicago for my cousins wedding. The service was impeccable. Not only was the staff attentive, they were respectful and careful not to interrupt the guests or make themselves known when serving dinner. I had the chicken wellington and it was to die for! The chicken was perfect and moist but the pastry crust was flaky and crispy. They even had Pakistani dinner options for some of the guests. The amenities were great, and after an open bar the night before, the Mimosas and brunch buffet couldn't have been better! I would love to have my wedding there.
Solution is here: positive
Explanation: Review writer likes the hotel. There are strong positive words like 'impeccable' and 'great'. Therefore it is classified as a positive review.

Now, solve this: We booked a room at the Hilton Chicago for two nights to stay the weekend, but upon arrival our reservation could not be found. I even provided the hotel with our confirmation number, but it still wasn't available! Fortunately, another reservation had not shown up so there was space available for us. Once we settled into our room for the night (after a long flight), there was a bad odor coming from the bathroom. Apparently the cleaning solution they used was tainted and they had to re-clean it after our arrival. Needless to say, with both of these poor experiences in just one night, I will be hesitant to EVER stay in this hotel again, let alone any other Hilton around. Please consider someplace else before the Hilton Chicago!

Solution:
negative