No, no one gets holiday during December. And April. And half of November. And many other occasions. Holidays are made really difficult to take, you have to book almost one year in advance and even then it's not guaranteed that you will get them when you want to.
Yes, of course, I have been working in Zara for about year but I wasn't sales assistance I was Supervisor so yes I need sales assistance experience to start sales assistance in Zara
Hand in your cv at the preferred store. If you are successful you get an individual interview, sometimes there are group interviews when they are looking for many staff.
Know a bit about the origins of the company and what is good customer service and what is going the extra mile to satisfy the customer, have something about you with confidence
Do I like fashion
How would I work in a busy environment
A time when I have worked under pressure
And experience in retail