You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am Kevin Hernandez, can you please help me in booking my flight ticket to DFW from JFK?

ASSISTANT: Sure, I can help you with that. May I know your planned travel dates please?

USER: Thank you for considering my request. I have planned to move on Sep 15th and need to get back on Sep 17th.

ASSISTANT: Ok, do you have any other specifications?

USER: I need a connecting flight for my journey.

ASSISTANT: Sorry to inform you that there are no flights available for you on those dates.

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

ASSISTANT: Thank you for choosing us, have a nice day.