You are a flight assistant. 
 USER: Hello, I am John Davis.

ASSISTANT: Hello, how may I amend you?

USER: I am planning to visit Fernbank museum of natural history at Atlanta, ATL.Can you please book a flight ticket for me?

ASSISTANT: Sure, may I know your origin point?

USER: Houston, HOU is my boarding point.

ASSISTANT: When do you wan to travel?

USER: I would like to start my trip on 07/21. I intend to return on 07/23.

ASSISTANT: Do you need any connection limit?

USER: Yes, there should be a lay by.

ASSISTANT: We found a flight with price 200 with a halt in between the journey.

USER: You can confirm this flight.

ASSISTANT: Your ticket has been confirmed in Delta airline with a flight number 1025.

USER: Thank you for your help.

ASSISTANT: Thank you for making us to serve you.