I need help with this program in phyton

Lab Assignment #E Assignments 1. Add a manual selection that interfaces with the user to your program. Add a user selection menu at the beginning of your program 2. The user interface: Enter your name: Tom Waits (example) Hello Tom Waits, please select the service: A: Investment projection B: Retirement planning C: Mortgage D: College fund E: Exit If user select A, execute your lab A program. If the user select E, output Thank you." If the user select anything else, output "Invalid selection." 3. Check to make sure that the user is input ONLY ABCDE or abcde 4. When the user finish transaction, prompt the user for another transaction, if the user enter N, end with "Have a nice day." 5. Under (D), Prompt the user to enter: Please enter the following: Principle Interest rate: After the user finish entering, output the following Hello Tom Waits: Principle: Interest rate: Saving period (in month): Net worth after X years Would you like to go back to Menu? (Y/N) (both Y or y, N or n are accepted.) X month