You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: My name is Deborah Adams. I am looking to book a flight ticket to meet my friend in Chicago. Can you help me for booking a flight ticket from DFW to ORD?

ASSISTANT: Sure, can you please share your travel dates?

USER: My travelling dates are Nov 03 and Nov 05.

ASSISTANT: Do you have any class preference?

USER: Any class is fine for me.

ASSISTANT: May I know your connection limit?

USER: I need a single connecting flight.

ASSISTANT: Do you have any other specification that you are looking for?

USER: My return time is afternoon.

ASSISTANT: Deborah Adams, I am sorry to inform you that there is no flight available at your request.

USER: That's ok, thank you for checking.

ASSISTANT: You are welcome. Thank you for contacting us.