Classify the given hotel review based on the sentiment it expresses into two classes: negative and positive.

We had reservations (guaranteed by credit card) for 2 nights this past weekend. When we checked in the clerk told us that they could not accommodate us for both nights because they were overbooked due to a conference in town. I asked them to relocate us for both nights so that we would not have to move in the morning. They sent us over to another location that they assured could accommodate us. The night manager gave us the address to a different hotel and sent us on our way. Eventually we arrived at the correct second hotel where the staff were expecting a letter from the Sheraton for the transfer - something we were never given. Eventually we checked into this second property and the next afternoon when our keys didn't work we found out that the night manager of the Sheraton had not assured that we could stay both nights at the second hotel. So once again we had no place to stay despite having a guaranteed reservation with the Sheraton. In addition to all of this, we had to pay $24 for parking at the Sheraton to find out that they would not accommodate us despite a guaranteed reservation. I am still shocked by this bad experience.
negative