You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Will you please help me to book a flight ticket from ATL to DFW?

ASSISTANT: Can I have your journey dates?

USER: Apr, 7 and Apr, 9 are my journey dates.

ASSISTANT: Do you need any connection limit?

USER: I would prefer single connection.

ASSISTANT: Do you have any other requirements?

USER: I need to return at afternoon time.

ASSISTANT: May I know your good name?

USER: Jack Adams here.

ASSISTANT: There are no flights available on your routes.

USER: Not a problem, thank you for the information.

ASSISTANT: Thank you for opting us.