You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you for today?

USER: My self William Carter, can you aid me in booking a flight ticket from HOU to JFK?

ASSISTANT: I am here to help you with that. Can you please provide your planned dates of journey?

USER: Sure, I would like to go on 12/13 and return back on 12/15.

ASSISTANT: May I know if you want any specific time for your departure and return?

USER: Ensure the depart time is in the morning.

ASSISTANT: I regret to say this William Carter, there are no flights which travels to your region according to your requirements.

USER: That's ok, thank you for checking.

ASSISTANT: You are welcome, thank you for reaching us.