'Dear Partner' - an opinion letter to a company, help me edit this text

Dear Partner,
First of all, Vietrantour Company is pleased to thank Partners have been with us during the past!
To improve service quality and professional operating modes of service, to promote tourism cooperation, Vietrantour invite Partners to sharing feelings, assessing quality of service, tourism products and working style of the staff, the level of cooperation, collaborative development opportunities through "Surveys of partner's satisfaction with Vietrantour"

The shared data source is extremely valuable to Vietrantour constantly improve, professionalize operations. We really hope Partners take a few moments and share feelings, assess about Vietrantour through enclosed documents!

Once again pleased to thank and hope to receive the support of partners in the future!
Respect,
Public relation department

I hope this helps :-) It's a bit short notice so this editing job is kind of rushed but usable for your purpose. It is polished already and ready to use or submit.

Dear Partner,

Vietrantour Company is proud of its continuing relationships with all our existing partners during the past year. In order to ensure a continued improvement of service quality, tourism programs, client cooperation skills, and heightened professional abilities of our employees, we invite all our partners to share comments and suggestions that assess our quality of service, products, and work staff through our "Survey's of Partners Satisfaction with Vietrantour" program.

The data that you will share with us will help us to assess the points for improvement of our company as we constantly strive to improve and professionalize our operations. It is our hope and desire that our partners take a few moments out of your busy schedules to help our company assess our client satisfaction ratings by filling in the enclosed documents and returning the same to us via postal mail.

We are always pleased to assist you and hope that you continue to support our company in the future!

With Due Respect,
Public Relations Department

thank you so much. I was afraid that no one would help me. i need it for tomorow, my text has a lot of mistake. thank you