You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you today?

USER: Can you please help me in booking a flight ticket from Washington, DCA to Atlanta, as I need to attend my uncle's house warming ceremony?

ASSISTANT: Sure, let me know your travel dates in order to book a ticket?

USER: I would like to go on 5th June and intend to back on 7th.

ASSISTANT: Do you prefer either economy or business class?

USER: I am flexible to travel in any class.

ASSISTANT: May I know your connection limit?

USER: I am looking for a connecting flight.

ASSISTANT: Please wait for a while, I will check all the available flights and return back to you.

USER: Sure, take your time.

ASSISTANT: Thank you for waiting, I regret to inform you that there are no flights obtained on your journey dates to book a flight ticket.

USER: No problem, thank you for the information.

ASSISTANT: May I know your name for our records?

USER: Sure, My name is Carolyn Thompson.

ASSISTANT: Thank you. Have a great day.