Finished command

finished=False
while finished==False:
    print("Hi, I am Marvin, your personal bot.")
    command=input("How can I help you?")
    if command == "add":
        print("lets add some numbers")
        input1=input("Number1> ")
        input2=input("Number2> ")
        number1=int(input1)
        number2=int(input2)
        result=number1 + number2
        output=str(result)
        print(input1 + "+" + input2 +"="+output)

    elif command == "Bye":
        finished=True
        print("good night")