You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. Is there any help that I can assist you?

USER: I am planning to book a flight ticket to DFW from SEA, can you please help me out?

ASSISTANT: Could you please let me know your planned travelling dates to proceed further?

USER: Sure, my planned travelling dates are Jan 01 and Jan 03.

ASSISTANT: Please let me know if you need a connecting flight.

USER: Yes, I am looking for a flight with 1 connection.

ASSISTANT: Can I know your name please?

USER: Sure, my name is James Turner.

ASSISTANT: Sorry there is no flight obtained on your travel dates to book a flight ticket.

USER: It's ok, thank you for the information.

ASSISTANT: You are most welcome and have a nice day.