Leaf Duo

Dear Miss Alice,
Our team is going to publish a new product, something totally new. The product is about a new way of advertisement publishing system based on the Internet, a cross-platform client software and, most important, a new thought about the relationship of people, especially friends and families. Other aspects, like the future of our team, will be involved.
We have decided to have a party in honor of the occasion. We sincerely hope you can attend the party, may I have the honor of your company? The reception will be held on the second floor of XXX Hotel, which is located in the downtown of Beijing, on next Sunday's evening. The party will last approximately 3 hours, from 6p.m. to 9p.m. I hope you're not too busy to come. Please confirm your participation at your earliest convenience, The favor of a reply is requested.
XXX team

PS: This is my English homework.