You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I need to attend a meeting at Dallas & Fort Worth, can you please help me in booking a flight ticket from ORD to DFW?

ASSISTANT: Sure, may I know the planned travel dates?

USER: Sure, my travel dates are from May 26 to May 28.

ASSISTANT: Please provide me the specifications.

USER: I am looking for a connecting flight.

ASSISTANT: May I know the name?

USER: Myself Helen Roberts. Please make sure that, I would like to return in the evening.

ASSISTANT: Sorry, there are no flights are available for your desired intent.

USER: Ok, no issues. Thank you for the information.

ASSISTANT: Thank you for reaching us.