Write a function ticket price(), which takes three arguments, in the following order:

base price: an integer that gives the base (regular) price of a train ticket

membership: a string that indicates the travel membership class of a train passenger: platinum, gold, silver or bronze

age: an integer that indicates a train passengers age

The function uses these three values to compute and return the final ticket price that a particular train passenger must pay, based on his/her membership class and age. Unfortunately, we dont have a nice, neat explanation of how to use these three values. All we have to go by is the following hastily written email from the train companys marketing department:

Sorry for the rush on this, but we need this program working ASAP. Right, so, platinum members and younger passengers (less than 65 years old) have to pay a $6 premium on the regular ticket price. Yeah, doesnt seem fair, but thats what management wants. No, it doesnt matter what membership the younger passengers are in just slap on the $6 charge. Gold and silver members always pay a $4 premium. Now, I know what youre thinking but what about the less than 65 years old rule? First check if the traveler is less than 65 and if so, hit them with that $6 charge. Only if the passenger is 65 or older AND a gold or silver member should you assess the $4 charge. Sorry if this is confusing. Now, older bronze members (older means 65 or older) pay a $2 premium; younger bronze members will have to pay that $6 premium I told you about earlier because theyre younger members (so the bronze status is actually irrelevant here). Hope this makes sense talk to your supervisor if you have questions.

Examples: Return Value Function Arguments 100, 'platinum', 77 106 100, 'platinum, 21106 100, gold, 25 50, 'gold', 71 60,'silver', 67 90, 'bronze', 67 60, bronze, 45 106 54 64 92