Dear Sir/ Madame,
My name is XYZ and I am writing in a response to your advertisement published on the www.ukjobs.com website.
I am very interested in working as a waitress in your hotel.
Currently I am a high-school student. I am a very outgoing and quick learned person. I speak English fluently, also know basics of Spanish and Italian. I am very polite and friendly that's why I do not have any problems with working in a team.
If you hire me, you will not regret it. I will be a very good employee.