Booking.com Customer Service Executive interview questions

I applied online, after around 2 weeks I had a phone interview, the phone interview last around 20 min. the last step is the group assessment, including self-introduction, company presentation, role play, 2-1 interview

phone call and then on site interview phone interview with HR was a basic experience check, talking about my previous jobs and how would they relate to the job I'm applying for, there were also the standard interview questions, why. are you applying for this job, what do you think you can bring to the company etc on site interview - first all applicants were explained everything about the job and company, then we had two language tests done online and we had to answer a phone call from 'a customer', last part was role play with two employees and a basic chat about my previous experience everything was pretty easy going and not too stressful