You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Can you please book me a flight ticket from JFK to PHL to meet my family?

ASSISTANT: Sure, let me know your travel dates?

USER: I have planned to travel on July 18th and return on July 20th.

ASSISTANT: Do you prefer direct flight or connecting flight?

USER: I prefer connecting flight.

ASSISTANT: Is there any other specifications?

USER: No, thanks.

ASSISTANT: May I know your good name?

USER: Kevin William.

ASSISTANT: Thanks for your details, there is no flight found on your desired journey routes.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.