Booking.com Data Scientist interview questions

First interview - HR stuff, just general questions, like how does booking.com works, what is your experience etc. Stuff is friendly and willing to explain things. After this step they provide feedback to their manager and based on it you get a second interview.

First phone call was with an HR who asks you about your experience and then she would test your analytical thinking with a mini case. Mine was about comparing the pros and cons of different agent models in the tourist industry. At the beginning of the case she tells you the standard "there is no right answer to the case", but then she wouldn't be satisfied with your answer unless you tell her exactly what she wants to hear (i.e. what she was told was one of the potential answers). Eventually I did, so we scheduled a second phone call. The second interview was with two members of the data science team. This part was much more pleasant - we talked in details about some of the machine learning model that I've worked on and then did a case. It was about whether observing a certain KPI would make sense in a given situation. At the end of the interview, they told me that they want to invite me for a on-site interview and that someone from HR would contact me to take care of organizing it. A day after that a HR did contact me, but she said that they do not want to continue further with the selection process and gave some vague reasons about communication. I asked if she could elaborate, but she never responded. Overall, the interview was alright, but I'm rating my experience as "negative" below for two reasons: first, you wouldn't expect from a good company to change their minds like that and second, if you invest your time into interviewing with them, they should at least to spend some time to give you a constructive feedback.