Write a very short cover letter in British English to University Hospitals Plymouth NHS Trust for the job below that I found on jobsincare.com 

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                                                    Patient Services Assistant with University Hospitals Plymouth NHS Trust in Plymouth

                                                     Patient Services Assistant - Host   We are looking for an enthusiastic and motivated individuals for this essential role in the Derriford Hospital.   Host- 37.5 hrs pw 07.30 - 19.30 , 3 days on, 3 days off on a six weeks rolling rota .     ***Preference will be given to internal Trust staff, as well as 'Priority' and 'At Risk' status including NHS At Risk staff throughout Devon who are able to display recent relevant experience as dictated by the Person Specification.***     Work with the Ward Team, in partnership with the Hotel Services Supervisor, and Departmental supervision and management to contribute to the maintenance of a hygienic and clean environment for patients, staff and visitors to ensure the highest standards are met at all times. To ensure, in conjunction with the Hotel Services Supervisor, Ward Manager, and Housekeeper that patients are provided with appropriate food and beverages at the agreed regular intervals throughout the day.     About us  Work with the Ward Team, in partnership with the Hotel Services Supervisor, and Departmental supervision and management to contribute to the maintenance of a hygienic and clean environment for patients, staff and visitors to ensure the highest standards are met at all times. To ensure, in conjunction with the Hotel Services Supervisor or Ward Manager, that patients are provided with appropriate food and beverages at the agreed regular intervals throughout the day.