Talking about the relationship between Harry and his in-laws was initially quite awkward. Even after Harry married Claudia, he always acted stiffly whenever he talked to his in-laws. Even though his in-laws are known to be friendly people, his in-laws still don't fully trust him. Like knowing that his daughter's marriage was a contract marriage.
When he has free time, Harry deliberately makes time to visit his in-laws. He did this when he started to love Claudia. This means that it can be concluded that Claudia was busy preparing for the hotel's anniversary event. Claudia looks so busy that she doesn't have time to chat casually with her parents even though they discuss projects almost every day.
Harry volunteered to visit his in-laws at the hotel. The first visit didn't bring anything. At that time he was confused about what he needed to bring. He was afraid that whatever object he brought would not be something his in-laws would like.