We are cruising in April with my husband's family and we are not sure if my husband will be able to go with us. We would know at about 4 wks. ahead. Is it possible to pay a change fee and have my sister take his place? Also, she has a one year old and could I add her to my mil's cabin, since we would already have 4 in ours? She would, of course, stay in our cabin but be listed on mil's cabin. Thank you .
