Final answer:
Answer the phone politely and take a message or call back if necessary, to demonstrate excellent customer service and respect for both in-person and phone customers.
Step-by-step explanation:
In a situation where you are the only sales associate working in the department and are currently assisting two customers in person, the best approach would be to excuse yourself politely and answer the phone, communicating with the caller that you will call them back if necessary. This way, you show equal respect and dedication to both in-person and on-call customers. Balancing these interactions is an integral part of providing excellent customer service. By doing so, you demonstrate a positive attitude, enthusiasm for your role, and a commitment to supporting the company's goals. Respect towards customers and mindful reflection on the importance of treating your manager as an important internal customer are both crucial in the workplace.