Dear Prof.Hull,
Yes,it is possible,sir but I can not change them immediately due to the ticket condition of V/W booking class.
V/W booking class allows passenger/agent to assign seat number in advance from row number 50 onward only.
To change seat to the front row, passenger/agent has to request a new seat at the check-in counter or make a change through internet check-in
which available from 24 hours up to 1 hour before flight schedule departure time.
I will change both seats for you at internet check-in.