You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: Can you please help me to book a flight from ATL to OAK?

ASSISTANT: Sure, please provide your journey dates.

USER: Sure, I want to travel on June 20 and need to return on June 24.

ASSISTANT: Do you need any connection limit?

USER: I need a flight with single connection.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: May I know your name?

USER: Emma Taylor here.

ASSISTANT: There are no flights available on your routes.

USER: Ok, not an issue. Thank you for checking.

ASSISTANT: Thank you for choosing us.