The service sector is experiencing significant development. Enterprises are increasingly turning to service activities. It is difficult to determine the boundary between goods and services since today's products contain elements of services. Unlike product services, they are: inexhaustible, indivisible, heterogeneous, untraceable, and there is no transfer of ownership in them. When making a purchase decision, users must pass through three phases, which are the phase before buying, purchasing and phase after purchase. Service companies should recognize the wishes, needs, and preferences of their users and fulfill them. If the expectations of users are met, they will be satisfied. Satisfied users will spread positive oral communication, re-use the services of the company and attract new users. It's important that companies sympathize with their users and identify with their problems because they can show concern for each individual user. In order to create a circle of trust between the company and the user, staff must always patronize the users with a sense of security. All employees should help the users and provide the services they want. Service companies need to fulfill the promises given to users without any hesitation. They also have to work constantly to provide quality service in the right way to make the company trustworthy. It is important that employees and users create and maintain a long-term trust-based relationship during interaction.