Business You're Welcome

What can I write or say when customers thank me for helping them? What can I say in addition to “you’re welcome?”

Here’s an example of what I mean. A customer wrote this in an email, “Thank you so much, and I am looking forward to doing more business.”

Here are a few things you can say:
  1. You're very welcome. Thank you for doing business with Pro Tech.
  2. You're very welcome. We appreciate your business.
  3. You're very welcome. We're glad to be of service to you.
  4. You're very welcome, Joseph. Thank you for choosing Pro Tech.