You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: Please help me to book a flight ticket from ORD to DFW.

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

USER: My planned travel dates are June, 26 and June, 28.

ASSISTANT: Please provide me the specifications.

USER: I am looking for connecting flight.

ASSISTANT: May I know the name?

USER: Susan Turner here.

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

USER: That's ok, thank you for the information.

ASSISTANT: Thank you for reaching us.