You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I would like to travel to Dallas & Fort Worth, can you please find a flight from PHL to DFW?

ASSISTANT: Sure, can you share your trip dates?

USER: The trip dates are August 25th and August 27th.

ASSISTANT: Do you have any connection limit?

USER: I can travel in any flight.

ASSISTANT: Is there any class preference?

USER: No, I didn't have any class preference.

ASSISTANT: Are there any other specifications?

USER: No, thanks for asking.

ASSISTANT: Please forward your name.

USER: I am Robert Carter.

ASSISTANT: We found a connecting flight of fare 200 with airline Southwest and number 1001. Can I book?

USER: Yes, please book the ticket.

ASSISTANT: Your ticket has been confirmed in economy class.

USER: Thanks a lot for your help.

ASSISTANT: Thank you.