Sales order addresses field

when i make a new sales order and i choose the client, automatically it will load the billing and the shipping addresses, so when i erase the billing one in order to leave it empty, on the save it will remove the address details, but in the name section it will keep the name of the address. how can i solve this? and this when i make a delivery note from it for example it will reput the address that should be blank.
how can i remove it totally from the SO in order to solve this?

@rushabh_mehta I am badly stuck on this issue and my system is in production therefore I could not wait too much. It is requested that kindly help us in this issue.

We would be very thankful to you.