You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you now?

USER: Can you aid me to book flight ticket from ATL to LAX?

ASSISTANT: Sure, I am here to help you in booking. Let me know your dates of travel for searching the flights.

USER: My trip dates are Aug 22 and Aug 24.

ASSISTANT: Can I know about your connection limit for the journey?

USER: I need a connecting flight to travel.

ASSISTANT: Do you have any class preference, that you prefer to travel?

USER: I am comfortable with any class.

ASSISTANT: May I know your airline preference, please?

USER: I do not have any particular airline to travel.

ASSISTANT: Let me know your specific departure and arrival timings, if any. May I know your name to proceed further for documentation purpose?

USER: I would like to return in the afternoon. I am Dennis Johnson.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: Sorry, there are no flights running on your desired routes.

USER: Ok, not a problem. Thank you.

ASSISTANT: Thank you for choosing us.