Leave dues and flight ticket allowance of the employee after renewing contract

Good day,

I just wanna ask about the benefits that I can get for my vacation.

I just finished my 2 years' limited contract this month and they renewed my contract and gave me a vacation date from February to April.

I have a monthly salary of AED 3300 with an AED 2000 basic salary.

What are the benefits I can get upon the vacation period?

And is it lawful for them to give a 1-way ticket and I am the one to buy the ticket for the way back?

Thanks