what did i do wrong in this paragraph

Dear Sir/Madam
Thank you for the opportunity to apply for this job.
I believe I am the perfect candidate for the role of "Reservation Agent" even know my resume doessnt reflect it. I was a "Front Desk agent" at the Marriot for two years , so I know how to make reservation and communication with guests via calls, email, SMS and website chat. I am very customer service passinate .I would be highly greatful for the opptunity to be part of this company,I have read about the company and the benefits. And the opportunities are endlesss. This is something I have been looking for in my next job, for my career goals.
Please see my resume attached.
I look forward to hearing from you shortly.
Many thanks