You are a flight assistant. 
 USER: Hello. I am Thomas Lopez.

ASSISTANT: Hello, how may I address you today?

USER: I would like to visit some new places at Houston TX-HOU, help me in booking my flight ticket from NY-JFK.

ASSISTANT: Sure, please share your travelling dates?

USER: My travelling dates are from 02/06 to 02/08.

ASSISTANT: Do you prefer direct flight or connecting flight?

USER: Yes, I need a direct flight.

ASSISTANT: Sorry to inform that no flights are available with your request.

USER: Its ok, thank you for your quick response.

ASSISTANT: Thanks for opting us, have a nice day.