You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you out at this moment?

USER: I planned to attend for a meeting in PHL, can you please help me to book a flight ticket from SEA?

ASSISTANT: I am glad to help you in booking your flight ticket. Could you please provide your planned dates of journey?

USER: I prefer to travel on Dec 6 and Dec 8.

ASSISTANT: Do you need any connecting flight for my journey?

USER: Yes, I prefer to travel in a connecting flight.

ASSISTANT: Can you please provide your name for booking purpose?

USER: I am Shirley Evans.

ASSISTANT: Do you need any other specification for your journey to met with?

USER: I would like to return back in evening.

ASSISTANT: Sorry to say this Shirley Evans, there are no flights which travels on your route.

USER: Ok, no problem. Thank you for your information.

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