Here is an email: Hi, Kristin. Your Dad asked me to write you and suggest that the two of you meet for lunch tomorrow at Grotto on Westheimer at 1:00 p.m. They don't take reservations, but the lunch crowd should have cleared out by that time. Let me know if that's ok with you or if you decide not to drive and need him to pick you up. Have a good time. SRS
What is a potential subject line for this email?
Lunch tomorrow