You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you today?

USER: Can you please help me in booking my flight ticket from SFo to ATL?

ASSISTANT: Sure, I am glad to help you with that. Can you please provide your preferable dates of travelling?

USER: Thank you and my travelling dates are from 09/06 to 09/08.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need a single connecting flight.

ASSISTANT: Any more specifications do you have?

USER: Yes, my depart time should be in the afternoon.

ASSISTANT: May I know your name to book a flight ticket?

USER: Myself Charles Miller.

ASSISTANT: We regret to inform you that, there are no flights moving to your region with your requested dates of travelling.

USER: It's ok, thank you for your help.

ASSISTANT: Thank you for reaching to our services, hope you have a great day.