You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I need to travel JFK and DFW, can you reserve flight ticket?

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

USER: My travelling dates are Feb,07 and Feb,09.

ASSISTANT: Please provide me the specifications.

USER: I prefer single connecting flight.

ASSISTANT: May I know the name?

USER: Myself Charles Collins.

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.