You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am Edwards Mitchell. Can you please assist me to book the flight ticket from Los Angeles to Dallas & Fort Worth?

ASSISTANT: Sure, may I know your airport codes please?

USER: Thank you. My airport codes are LAX and DFW.

ASSISTANT: Ok, let me know your trip dates.

USER: The trip dates are Oct 23 and Oct 25.

ASSISTANT: Do you have any specifications?

USER: Yes, I am looking for a single connecting flight for my journey.

ASSISTANT: Sorry, there are no flights in this route as per your travelling details.

USER: It's ok, not a problem with that. Anyways thank you for your time.

ASSISTANT: Thank you for reaching us.