Customer service is the assistance and advice provided by a company to those who purchase or use its products or services. It plays a crucial role in customer satisfaction and retention, ensuring that customers feel valued and heard. Effective customer service can lead to positive word-of-mouth and repeat business, which are essential for a company's success. In today's digital age, customer service has evolved to include various channels such as phone, email, live chat, and social media. Companies often employ customer service representatives who are trained to handle inquiries, resolve issues, and provide information, creating a seamless experience for customers.