customer – n. a person who buys from or uses the services of a company especially regularly
proud – adj. very happy and pleased because of something you have done, something you own, someone you know or are related to, etc.; feeling pride
relaxed – adj. calm and free from stress, worry, or anxiety; not worried or tense
merely – adv. nothing else than; just
staff – n. a group of people who work for an organization or business