You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I am planning to promote my franchise business at Atlanta. Can you please help me in reserving the ticket from OAK to ATL?

ASSISTANT: Sure, can you please provide your journey dates?

USER: I would like to travel on Apr 14 and again I will return back on Apr 16.

ASSISTANT: Are you looking for any preferred connections?

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

ASSISTANT: Do you have any other specifications to be met?

USER: My depart time is afternoon.

ASSISTANT: Kindly mention your name to proceed further?

USER: Myself Nicholas Harris.

ASSISTANT: Ok, please wait a moment. Thank you for your valuable time, unfortunately no flights available on that route.

USER: Sure, I will wait for your response. Not a big deal, anyhow thank you very much for your kind information.

ASSISTANT: Thank you for opting us.