You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Paul Davis here.

ASSISTANT: What can I do for you now?

USER: I am planning a trip to JFK from HOU. Can you please help me to book a flight?

ASSISTANT: Paul Davis, can you tell me your planned dates for this trip?

USER: Sure, I want to start my journey on Mar 14 and need to end on Mar 16.

ASSISTANT: Do you need a direct flight?

USER: I need a connecting flight.

ASSISTANT: Sorry for the inconvenience but there are no flights available for your journey.

USER: Ok, no problem. Thank you for the quick response.

ASSISTANT: Thank you for approaching our services.