How do I open multiple bookings for the same dog?

I have a client who wants me to walk her dog on Tuesdays and Thursdays for 30 min and on Wednesdays and Fridays for 1 hour.

I know that I cant set different numbers of walks in the same request (for ex. Tue/Thu 1 walk per day and Wed/Fri 2 walks per day = 1hour), so I opened the request for Tue/Thu and now I need to open another request for Wed/Fri. How do I do that?

(Or should I set 1 walk per day and then manually adjust the price?)