Write a letter to your friend to say thanks for his help Sent to N.A.T law office Dear Mr Giang I sincerely write this letter in order to express my greatfulness towards your office for me the best experience during my time in here. I appreciate all of your help. If without your hepl I would not had a complete thesis, it's a part of my curriculum. You gave me the data although it was confidential information of your office, I have never seen anyone as generous as you. About 2 week I working with you I have learned many valuable experiences. It will help me in the future Thank you again for your consideration Have a nice day Best wishes