Need to translate invitation for dinner into Spanish

Hi guys, I've been searching for a site like this for years and am so happy that I finally found one. I will be inviting over friends for dinner and wanted a brief message to be translated
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Dear miss …………….

I would like to invite you for dinner at my place on Monday the 14th. Please be ready by 7:30,
Take care
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Thank you for your guys.

Hi outpost. This is my translation proposal
Hope it helps :)

Estimada Srta. _____

Tengo el gusto de invitarla a una cena en mi casa el próximo Lunes 14. Le agradezco por favor estar lista a las 7:30.

Saludos

Hi

I agree with Hebe.
This is another option for the second sentence.
Le agradeceré que por favor esté lista a las 7:30 p.m.

Hope it will help
Enjoy your dinner!

Melissa

Thank you Hebe and Melissa for the quick reply,

take care