A letter to boss

Hi, I'm writing a letter to ask the boss is there any oppourtunity to stay in the office, because my project is ending, can anyone help me to check and correct this letter, thanks a lot.

Dear ***,
I am so glad to have been part of the ***, and to have had the opportunity to work under you. As the project is ending, I'm wondering is there another opportunity to work with you in the future. I like the atmosphere and chemistry here, and it is a great experience to work with the team, the people are all friendly and efficient. During this period, I've learned a lot from the project and strengthened my SPSS skills. Though holding a bachelor's degree in engineering, I have audited some educational psychology courses in the university. The teaching assess project is relevant to my interest, so working in our centre is really appealing to me. My plan is to pursuit a PHD degree in the future, so I am applying for research assistant jobs in the universities now. I would really appreciate it if you would write a letter of recommendation for me concerning the time I worked here. For your further information I enclose my curriculum vitae.
Thank you very much for your time and consideration.
Yours