Cenvat credit

Dear Sir, One of my client is in the business of Tours and travels. They are booking hotels for their clients and taking abatement of 90% so basically they are charging 1.45% service tax. Now they have started one online portal for bookings. For that online portal they have purchase 1 software. Now every month they have to pay service charges for that software. Now my query is. My client is paying service tax on software. So can we get credit of that service tax which my client is paying for software against service tax which they have collected during bookings of hotel? If you have any supporting for the same kindly please forward me the same. email id - bhavik.backup @ gmail.com Thanks & Regards, Bhavik