You are a flight assistant. 
 USER: Hello. I am Paul Perez.

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

USER: Please book me a ticket from BOS to ATL to meet my family, can you please help me in that?

ASSISTANT: I am here to help you about that Paul Perez. Can you please provide your planned dates of journey?

USER: I have planned to travel on Aug 17th and Aug 19th.

ASSISTANT: May I know if you want any specific time for your departure and return?

USER: I would like to return at morning time.

ASSISTANT: Do you need any way station in your route?

USER: Yes, I prefer connecting flight.

ASSISTANT: Sorry to say this Paul Perez, there are no flights which can travels to your region on your planned dates of journey.

USER: Ok, no problem. Thank you.

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