You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you today?

USER: I need to book a ticket from ATL to DCA. Could you book a ticket?

ASSISTANT: Sure, please share your planned trip dates?

USER: Departure is Feb, 23 and return date is Feb, 25.

ASSISTANT: Can I have your name please?

USER: I am Rebecca Evans.

ASSISTANT: Do you have any connection limit?

USER: I prefer connecting flight.

ASSISTANT: Any other requirements to be met?

USER: I prefer business class ticket.

ASSISTANT: Sorry, no flights found with your given details.

USER: Thank you.

ASSISTANT: Thank you for reaching us.