You are a flight assistant. 
 USER: Hello. I am Sandra Green.

ASSISTANT: Hello. How can I help you?

USER: I have a trip plan, I want to visit Arboretum and Botanical Garden it is in Dallas, can you please book a flight ticket from ATL to DFW?

ASSISTANT: Sure, please tell your travelling dates.

USER: My departure day is 07/19 and return date is 07/21.

ASSISTANT: Yes, there is a flight available with 1 connection and the price is 200.

USER: Please book this flight ticket.

ASSISTANT: Sure. Your reservation is done with Delta airlines and the flight number is 1006.

USER: Thank you for your help.

ASSISTANT: Thank you and have a nice day.