You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: Can you please book a flight ticket from ATL to DCA?

ASSISTANT: Sure, can you please share your travelling dates?

USER: My travelling dates are Dec 06 and Dec 08.

ASSISTANT: Do you need any break in between the journey?

USER: I need a connecting flight.

ASSISTANT: Is there any other specifications?

USER: I don't have any other specifications.

ASSISTANT: Please share your name.

USER: My name is Edward Lee.

ASSISTANT: Sorry to say, no flights found with your requirement.

USER: That's ok, thank you for the response.

ASSISTANT: Thanks for reaching us.