<human>: Can you summarize the given text in a few sentences?

I work at a hotel and the other weekend we had a super nice couple come in all excited to be staying with us.

During their check in I did the whole speal I do to most arriving guests.  I asked how their day has been, ain't this weather wonderful, how was your drive in, yadda yadda.  They mentioned that traffic was backed up for a few miles right outside the exit ramp for the hotel and how they're just happy to be off the road. 

We have a generic message option in our reservation system and they selected the one marked "Anniversary Night."  I really liked them so I upgraded their room to one of our nicer suites and thought it would be nice to send up a bottle of champagne to toast to another year of marriage. 

I filled out the proper paper work, attached a little hand written card and sent it to the kitchen for them to deliver on ice with two flutes.

About 10 minutes later I get a call down from the gentleman staying in the room asking me if I know anything about a bottle of champagne sitting on their table.  They'd stepped out for a second and the room service staff set it nicely off to the side.

So I go "yeah, we wanted to do something nice for your anniversary.  Plus, after all that traffic out there you guys could probably really use a drink!"

Eh, I could have probably gone without saying that.

He took it all in stride and was very gracious but he told me him and his wife are recovering alcoholics and were actually at the hotel celebrating the anniversary of their first day of sobriety a dozen or so years ago.  He said the stress of the traffic would have been a reason for him to crack a beer before he cleaned up.

I apologized about 20 times and ended up sending up some lava cake or some shit like that and we were all laughing about it when they stopped by before going out for the night.

I've now learned to give my guests options when trying to make their stays special; even if it does take away from the surprise.
<bot>: Sent a complimentary bottle of champagne to a nice couple celebrating what I believed was their wedding anniversary - turned out to be a celebration of their sobriety.