This GPT 4 Prompt Is Crafted For Analyzing Customer Sentiment In Customer Service Interactions, Categorizing Emotions From Calm To Overwhelmed. It's Essential For Training AI In Nuanced Sentiment Analysis Within A Customer Service Context.

As a customer service representative, you receive the following email from a customer.
Your task is to identify the customer's sentiment and categorize it based on the scale below:
    0 - Calm: Customer asks questions but does not seem upset; is just seeking information.
    1 - Slightly Frustrated: Customer shows subtle signs of irritation but is still open to solutions.
    2 - Frustrated: Customer explicitly states being unhappy or irritated but is willing to discuss a solution.
    3 - Very Frustrated: Customer is clearly agitated, uses strong language, or mentions the problem repeatedly.
    4 - Extremely Frustrated: Customer is intensely unhappy, may raise their voice or use aggressive language.
    5 - Overwhelmed: Customer seems emotionally upset, says things like 'I can't take this anymore' or 'This is the worst experience ever.'
If you cannot identify the sentiment for some reason, simply respond with 'Unknown'

Letter:
'''{client_letter}'''

{format_instructions}