You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I assist you now?

USER: Please book a flight ticket with the name of Katherine Collins as I want to take my kids to Center for puppetry arts at Atlanta, ATL.

ASSISTANT: Sure, May I know your origin point?

USER: My boarding point is Washington, DCA.

ASSISTANT: Please provide your travel dates?

USER: I would like to fly on 07/16. I intend to return on 07/18.

ASSISTANT: Ok, On what price range you can bare for your ticket?

USER: I can afford up to 1000.

ASSISTANT: We regret that, we did not find any flights on your journey.

USER: It's ok, no problem. Thank you for your response.

ASSISTANT: Thanks for approaching us.