You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am Laura Martinez. I am planning to book a ticket form HOU to PHL. Can you please help me out?

ASSISTANT: Sure, I can help you and can you please mention your preferable travel dates of your journey?

USER: I am planning to travel on Sept 06 and return back on Sept 08.

ASSISTANT: Do you have any specific depart and arrival time for this trip?

USER: Yes, my depart time is afternoon and return back on morning.

ASSISTANT: Please let me know if you need a connecting flight.

USER: Yes, I am looking for a connecting flight.

ASSISTANT: Sorry to say, non of the airlines is providing a flight on your travel dates and location codes to book a flight ticket.

USER: That's fine, thank you for your service.

ASSISTANT: You are most welcome and thank you for reaching us.