If a client has messaged you via Slick, you can reply by clicking 'reply to client' in the notifications centre/activity feed.
Alternatively, you can find their booking and send a message directly from it by clicking 'Send text'.
However, if you do not have a booking or reply for this client already, head to their client profile and click 'text client'.
If you would like to check your sent messages that have gone out to individual clients - Learn how to do this here.