You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

USER: I want to travel HOU from PHL, can you please help me with this?

ASSISTANT: Sure, please share your planned trip dates?

USER: I planned my dates to travel on Dec 6 and return on Dec 8.

ASSISTANT: Let me know your connection limit?

USER: I prefer a lay by in between the journey.

ASSISTANT: Any other requirements to be met?

USER: No, thank you for asking.

ASSISTANT: May I know your good name?

USER: I am Joseph Green.

ASSISTANT: Sorry, there are no flights found with your given details.

USER: It's ok, thank you.

ASSISTANT: Thank you for reaching us.