Thank you all for the quick and helpful responses. This will be a short trip whereby we aren’t taking any checked luggage. I would like to take a personal item (small backpack like purse) and a 21” roller. The only loyalty program I am currently in is I signed up for the BA flying club and received a number just to get sale notifications, etc. I shouldn’t think that would help with this situation, though!

I will share with her what you all have advised here and hopefully it will help with her decision. Thanks again!