2 tickets with cycles paris to grenoble 29 august 2011

[divya tate]

i have a ticket for 3 persons with reservations for cycles on TGV from paris gare de lyon to grenoble for the 29th of August 19:44. my 2 fellow passengers have changed their plans so i have 2 tickets to offer. the price is 48 euros per person with the cycle.
pl respond here
merci