Writing Errands

Hi I am still looking for assistance with the below question.
Create a help or directions feature to:
Explain how to use the features of the program.
Implement the use of a method with no parameters for this feature.
Modify the calculation of the total trip amount to use a method with a single parameter.
Implement the use of a class and create object for each travel request.
Implement at least one occurrence of exception handling.

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