You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I assist you?

USER: I have a live music concert at Atlanta, please help me in booking a ticket from SFO to ATL.

ASSISTANT: Sure, May I know the travelling dates?

USER: My planned travel dates are on Feb 12 and Feb 14.

ASSISTANT: Do you have any connection limit?

USER: I need a flight with single connection.

ASSISTANT: Is there any other requirements?

USER: No, thank you for asking.

ASSISTANT: May I know your name?

USER: My name is Samuel Turner.

ASSISTANT: Sorry, No flights found with your preferable dates.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thank you for opting us.