Adobe Acrobat Form: How can I fill in sections before sending to customer without them adjusting?

Hi there

I really dont know what the term for this is so I cant search for it. I am creating a contract form using Adobe Acrobat 10.1.6 Mac OSX. It is always the same contract template, but I need to fill in certain sections on it first (Price, dates, deposit amounts etc) before sending it to a customer. How can I create a form like this please?

So in the end I want to

a) Open the template contract

b) Answer the forms questions that I need to input myself (Price, dates, deposit amounts etc)

c) Email the contract to my customer and allow them to fill in the remainder of the form without allowing them to adjust what I have filled in myself.

I know this sounds a little messy, and I need to be able to easily distringuish between the two people filling it out (Me and my customer)

Any help?

Thanks