You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I be there at your service?

USER: Daniel Rodriguez here. Please help me out in booking the ticket from ATL to DCA.

ASSISTANT: Sure, will you please let me know your connection preference?

USER: I need a 1 stopover in between my journey.

ASSISTANT: May I know your preferred travel dates?

USER: My departure and arrival dates will be 11/11 to 11/13.

ASSISTANT: Do you prefer to travel in economy class or business class?

USER: I am ok with the both the class.

ASSISTANT: At what time are you willing to travel?

USER: Depart time must be in the evening.

ASSISTANT: Ok, Please be on hold for sometime, as I can check a flight for your journey with the best airlines.

USER: Ok.

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: That's ok. Thank you.

ASSISTANT: Thank you for approaching us.