写一封邮件，邀请你的朋友来参加你的生日派对。邮件中应包括日期、时间、地点和活动详细信息。
好友姓名: Lily

                      生日日期：6月20日

                      时间：下午2点至5点

                      地点：123 Oak 街

                      活动：聚餐、蛋糕切割、游戏
Subject： Invitation to my birthday party

Dear Lily,

I'm excited to invite you to my birthday party which will be held on June 20th at 123 Oak Street from 2pm to 5pm. I would be thrilled if you could come and celebrate this special day with me.

We have planned some fun activities, including a group meal, cake cutting, and a few games. I hope you can join us on this joyous occasion.

Please confirm your attendance by June 15th so we can make proper arrangements accordingly.

Looking forward to seeing you there!

Best regards,

[Your Name]