Last week, SIL told us she was definitely coming. When I spoke to my friend (Flake) in November, she said she was also definitely making it and was checking for flights at the time of our conversation. Normally, DH and I would take these yes's as just that, but SIL and Flake have cancelled before with little or no notice. For example, this past Labor Day Weekend SIL said she was to be expected on a Monday but changed her mind by Wednesday. Flake, well, she is just as I have nicknamed her and may most likely just not show up; however, she has been known to surprise us every now and then.
DH and I have left each of them one email and one phone call message last weekend, but SIL and Flake seem to be on Casper status.
There are things that need to be planned, such as Christmas dinner and airport transportation. SIL is a vegetarian. DH and I were thinking of making all side dishes vegetarian and having two entrees (one meat and one vegetarian). We'll also have to prepare more food in case it turns out to be dinner for three or four rather than just for two. As for the airport thing, that's a bit more complicated and time consuming - we're splitting our time for the holidays between our country house and our city apartment (full-time residence). We don't mind picking them up or dropping them off at the airport and we've already told them when we're staying at which place and what airports would be more convenient for each case, so it would be great if they paid attention to our prefences when booking their flights. SIL's stay is easier to gauge as she said she was intending to visit through the weekend and leave before New Year's, but Flake said she was working Christmas Eve swing-shift and would take a flight after...meaning the earliest she could show up is on Christmas Day and expect to be picked up right then and there. Of course, we could confirm all this if only these people would come out of hiding.
We want to be accommodating, but there's only so much we can do. (BTW, DH told me to give up on Flake and he'll give his sister another call today)