Longer or shorter, booked right.
Set a client's own time for a service once, and new appointments use it.
Nail salon client management
Everything about a client, on one profile.

More on the profile, and more in the inbox.
Listed first when booking, by kind of service.
Label clients VIP or Bridal party, and limit a discount to a tag.
Ready-made replies, with the client and visit filled in.
Online when booking, from a link in the text, or at the desk.
Photos and all. A note shows it was unsent.
Two profiles for one person become one, every visit kept.