You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I guide you for today?

USER: I need to book a ticket in a normal-cost, can you help me over that?

ASSISTANT: I am here to help you about that, can you please let me know your planned dates of journey?

USER: Ok, my trip dates are from Nov 11 to 13.

ASSISTANT: Can you please let me know your location airport codes of journey?

USER: Sure, my journey locations are from ATL to SEA.

ASSISTANT: Is there any other requirement for your journey to met with?

USER: I need a flight in economy class with single connection.

ASSISTANT: Please provide your name for booking purpose.

USER: Sure, I am Kathleen Edwards.

ASSISTANT: Sorry Kathleen Edwards, there are no flights which travels to your region on your planned dates of journey.

USER: It's ok, thanks for checking.

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