TrueCrypt 7.1a Decrypt

Hello,

I ask you please help to decrypt a file. I remember the password, part of the password, or so I think. I'm not an expert in softrware, I do not program. That's why I strongly urge you how to get it.

I have a file, which I mounted with truecrypt.

I think the steps I have to follow are these:

     1.- Remove the Hash from the encrypted file that I have.
     2.- Create a dictionary.
     3.- Make hashcat decrypt

It is right?, crep I have extracted the hash, with the following command in ubuntu:

dd skip=31744 count=512 if=output.binary of=output.binary bs=1

*output.binary=File encrypted

now I have a file called "output.binary":, which is not checked if it is correct, and I do not know the next step.

PD: if you know any company, specialist I am willing to pay for the service.