You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: Can you please help me in reserving the ticket from PHL to ATL?

ASSISTANT: May I know your name?

USER: Myself Frank Walker.

ASSISTANT: Can I know your travel dates?

USER: I would like to travel on Apr 19 and again I will return back on Apr 21.

ASSISTANT: Any other specifications?

USER: I am planning to travel in single connection flight.

ASSISTANT: Sorry, no flights are available in this route as per your requested dates.

USER: Not a big deal, anyhow thank you very much for your information.

ASSISTANT: Thank you for reaching us.