You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I would like to reserve a flight ticket to reach Atlanta, can you please help me to find a flight from Dallas & Fort Worth?

ASSISTANT: Sure, I will help you. Can you please share me your travelling dates?

USER: Thank you. The planned travel dates are Jan-25 and Jan-27.

ASSISTANT: Ok, may I know your travelling airport codes?

USER: The airport codes are DFW and ATL.

ASSISTANT: Ok, please mention your name.

USER: My name is Andrew Phillips.

ASSISTANT: Ok, do you have any connection limit?

USER: I would like to travel in a single connecting flight.

ASSISTANT: Ok, do you have any other specifications?

USER: No, thanks for asking.

ASSISTANT: Please allow me a moment.

USER: Ok, take your time.

ASSISTANT: Sorry, no flights are available on your route.

USER: It's ok, not a problem with that. Thank you for searching the flights availability.

ASSISTANT: Welcome, have a nice day. Thank you for choosing us.