You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Samantha Perez.

ASSISTANT: How may I assist you today?

USER: I planned to attend for a meeting in CLT, can you please help me to book a flight ticket from ATL?

ASSISTANT: Sure, let me know your travel dates please?

USER: I prefer to travel on Sep 5 and Sep 7.

ASSISTANT: Do you have any specific depart and arrival timings?

USER: I prefer to return in afternoon.

ASSISTANT: Ok, is there any class preference?

USER: No.

ASSISTANT: May I know your connection limit?

USER: I planned to travel in a connecting flight.

ASSISTANT: Do you have any airline preference?

USER: No.

ASSISTANT: Sorry to inform you that there are no flight services available on your given details.

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

ASSISTANT: Thanks for opting us.