Write the next sentence in the following story.

How to welcome a new customer
Acquire customer information at the time of his first purchase.
Contact information should include name, address, phone number and email address. Let the customer know that you are requesting his information so that he may receive additional discounts in the future in reward for his patronage.

Possible answers: 1). If you have not had customer information by the time of the purchase, contact the store. Describe the item or service you plan to provide or record the order.. 2). It is especially important to provide enough information so that he will not ask for it the next time he stops by your office. Introduce yourself and inquire about the customer's wallet and other upcoming purchases before asking them questions.. 3). If you are using a 30 year old company, don't take advantage of his older customers; don't order things that display the name of your company in the same way. Talk to them in a polite and witty way.. 4). Send a letter that thanks and welcomes your new customer. Arrange for the letter to come from someone within the company who holds a management position... The answer should be
4).