To implement the addBooking function for inserting a new HotelBooking into a linked list while maintaining a specific order, you need to ensure that the list is sorted by hotelName, arrivalDate, and confirmNum. Here$$s a step$-$by$-$step guide along with the implementation:

Steps to Implement addBooking

Create a New Node: Create a new node with the given hotelName, arrivalDate, and confirmNum.

Find the Correct Insertion Point: Traverse the list to find the correct position for the new node based on the sorting criteria:

hotelName $($alphabetically$)$

arrivalDate $($chronologically$)$

confirmNum $($numerically$)$

Insert the Node: Insert the new node at the correct position to maintain the list's sorted order.

Handle Edge Cases: Consider cases where the list is empty, or the new node should be inserted at the beginning or end of the list.

Here's how you can implement this in C$++$: