How do customers needs and expectations can differ?

Customer needs and expectations can differ because different people have different expectations for example a disabled person in a supermarket will expect a wheelchair access ramp whilst a person who is shopping on their own will expect good offers and friendly members of staff. This is the same for Hotels and restaurants; except in hotels and restaurants the customer needs are different for example a disabled person will still expect disability access whilst a single person or couple will expect friendly staff and quality rooms.