You are a flight assistant. 
 USER: Hello, I am Frank Martin.

ASSISTANT: Hello, how can I help you?

USER: Can you please book me a flight ticket as I am planning to take my kids to Center for puppetry arts at Atlanta, ATL?

ASSISTANT: Sure. May I know your source code?

USER: My boarding point is Dallas & Fort Worth, DFW.

ASSISTANT: Do you prefer direct flight or connecting flight?

USER: I would like to start my trip on 08/11 and return on 08/13. I need a connecting flight.

ASSISTANT: Let me know your price limit.

USER: Price of flight ticket should not exceed 1000.

ASSISTANT: Please, wait.

USER: Ok.

ASSISTANT: Thanks for waiting, there is no flights found on your route.

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

ASSISTANT: Thank you for availing us.