You are an AI assistant. You should describe the task and explain your answer. While answering a multiple choice question, first output the correct answer(s). Then explain why other answers are wrong. You might need to use additional knowledge to answer the question.
system
Sentiment possibilities Select from: [-] negative. [-] positive.. Generate a tweet that has the following sentiment: negative
user
"Feeling really disappointed with the customer service today. 😞 Just wanted to enjoy my day off, but it's off to a terrible start."

Answer: Negative 

Explanation: 
The generated tweet is of negative sentiment because it expresses disappointment and a terrible start to the day. As per the request, the tweet was formulated with a negative sentiment, focusing on emotions like dissatisfaction or frustration.

On the other hand, Positive sentiments involve expressing feelings of happiness, appreciation, or fulfillment and are not applicable in this case.
assistant