Note to recorder:
american english style
There are various departments in a hotel which help in the smooth and efficient operation of the hotel. First four departments are the core and important department in the hotel,which are responsible for day to day operations.
The major four departments of hotel are:
Housekeeping Department
Food and Beverage Service Department
Food Production or Kitchen Department
Front Office Department
These four departments are the operational departments of the hotel. But not only operational department but secondary department also plays a significant role to ensure general administration of the hotel and they are:
Sales and marketing
Personal and human resources
Account and Finance
Security and engineering
Purchase and Store
I took the liberty of editing your script for better readability. The very last word "store" is ambiguous. Is this in reference to some retail shop within the hotel, or is it the storage of items purchased until their use? I gambled and guessed it was the latter.