Transform into indirect speech.

-What do you think about a new contract?

-It a very big one. Under the contract we shall deliver our equipment and sent our specialists to the customer's country.

- Is it your first contract with the customer?

-No, we have done a lot of business with them.

He asked me what I thought about a new contract.

I said that it was a very big one and u nder the contract we would (should) deliver our equipment and would send our specialists to the customer's country.

He wondered if it was my first contract with the customer.

I disagreed and replied that we had done a lot of business with them.