I am planning to stay for five days at Lauter brunnen. four days in Lucerne Can you suggest me how to go about it.
You can find a lot of practical guidance in the planning section of this website. Once you have a more detailed plan, feel free to post more specific questions here.
Also, these links are useful:
All you need to know about traveling by train, bus or car in Switzerland.
Hand picked Swiss hotels and other accommodations are right here.