ありがとうございます→よろしくおねがいします。I hope you will take care of me.=Thanking you in advance. To sayありがとうございます is strange because you haven't known whether someone gives you a favor. It might be a correct expression in English. But in Japanese, we don't say "ありがとうございます Thank you" before we know someone gives us a favor.
※This page is for correcting Japanese. You should write your essay in Japanese. And if it is for your oral exam, I think you should do it by yourself. You can use dictionaries (sites).