What is Customer Service and how to make a customer happy

BE ACTIVE LISTEN CAREFULY RESPOND IN APPROPRIATE MANNER GIVE THEM WHAT THEY WAAN ON TIME SO THAT THEY WILL BE HAPPY.WHILE LEAVING THANKS TO THEM

There is only one word that best describes customer service and that is "listening". If we give an attentive ear to our clients then about% of the problem if any exists is solved and always a client being a human appreciates an attentive ear. In addition to listening, the second step that plays an equally important role is "responding", now here many execs will respond in a structured manner as directed by their superiors which i believe will not be appreciated. If we respond in a manner that suits human interaction instead of running our mouths on a loop will improve client relations and also push the clients to be a little extra patient with the execs. 

Customer Service is that listen the problem from customer carefully and try to understand it and then make suitable solution for concerning customer.