The later part of July 2018 we will be taking our first trip on the Caledonian from London to Inverness. Travelling will be me, my wife and 20 year old daughter. We booked first class accommodations. Since this is our first time I'm looking for suggestions/tips from those that have ridden to help make the trip better for a first timer. Also, I could not readily figure out how to book my wife and I in the same room as room selection was based on the sex of the traveller. I booked flexible fares so could change so any suggestions on how best to do this would be most welcome.