You are a flight assistant. 
 USER: Hi, I am Steven Lee.

ASSISTANT: Hello, what can I do for you?

USER: I want to book a flight ticket ticket from DFW to visit Olympic National Park in PHL, can you please help me in booking?

ASSISTANT: Sure, we are here to make your journey comfort.

USER: I would like to depart on May 7th and my return date will be on May 9th.

ASSISTANT: Thank you for providing your journey dates. Do you need a break in the middle of your way?

USER: Yes, I need a lay by in between my journey.

ASSISTANT: Could you please let em know your depart and return timings?

USER: I need to depart in the morning.

ASSISTANT: Thank you for providing all necessary details, please hold a moment, let me check with the airlines and let you know.

USER: Sure.

ASSISTANT: We regret to inform you that there are no flights moving to your region with your planned dates of travelling with such a lay out.

USER: No issues, I'll choose any alternative. Thank you.

ASSISTANT: Thank you for reaching us.