Dear Felix
Allow me the pleasure of inviting you to lunch at [ESTABLISHMENT, ex. Enchant e] [DATE, ex. next Wednesday. [STATE WHAT YOU PLAN TO DISCUSS AND HOW IT MAY BENEFIT THE RECIPIENT, ex. I believe it will be a wonderful opportunity for me to learn more about your firm’s manufacturing process and to discuss how our Magna flux compressor can reduce your operating costs.]
[STATE REQUESTED NATURE OF RESPONSE, ex. Please tell me whether you are able to come by calling me at XXX-XX-XX.]
Regards
Lydia