I chatted with a Holland agent online about this subject. They weren't very helpful but very polite.
[Chinchin] Welcome to Holland America Line. Chat service is available in English only. Please hold while we connect you to the next available agent...
[Chinchin] Thank you for contacting Holland America Line Chat. I hope you're doing great. My name is Chin. How can I make your day better?
[Chinchin] I just want to check if the chat is still connected?
WE WERE LOOKING AT EXCURSIONS for our cruise. We are looking specifically at Cherbourg and an excursion to Normandy. They are sold out but there is a waiting list. Does this mean you will be adding more groups or that we have to hope that someone cancels their excursion?
[Chinchin] hi, Patrick.
] Hi Chinchin
] That means, you will be on the waitlist and yes, slots will depend if someone cancelled their reservation. Also, it is first come first serve basis.
[] Do they ever add on another excursion if the waiting list is big enough?
[Chinchin] I canno guarantee that since waitlist is a not guaranteed slot.
I'm not asking for a guarantee at this time, only wondering if it ever happens.
[Chinchin] It's not guaranteed.
[Chinchin] Aside from this, is there something else I can assist you with?
[ Not at this time, thank you.
[Chinchin] I am delighted to be of assistance. I wish you a wonderful day! Thank you for chatting with us on Holland America Line Chat. Stay Safe!