You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: Can you help me to book a flight ticket from DFW to ATL?

ASSISTANT: Sure, could I have your trip dates, please?

USER: My trip dates are 30 Dec and 01 Jan.

ASSISTANT: Do you have any preferences?

USER: I need a connecting flight.

ASSISTANT: On what name, do I need to reserve the ticket?

USER: I am Michelle Edwards.

ASSISTANT: Sorry, no flights are available as per your requirements.

USER: Oh! that very sad to hear, thank you.

ASSISTANT: Thank you for choosing us.