You are a flight assistant. 
 USER: Hi. Gary Clark here.

ASSISTANT: Hello. How can I help you?

USER: Can you book a flight ticket for my airport codes that is from JFK to EWR?

ASSISTANT: Sure, can you please let me know your trip dates?

USER: The travel dates are from Mar 18 to Mar 20.

ASSISTANT: Would you like to fly with connecting flight or direct flight?

USER: Any connection will be fine.

ASSISTANT: Is there any other criteria?

USER: No, that is it.

ASSISTANT:  If you can help me with your name, I can check with the availability of flights.

USER: Already mentioned.

ASSISTANT: Thanks for sharing your details, we are unable to provide flight in between your journey routes.

USER: Not a problem. Thank you.

ASSISTANT: Thank you for reaching us.