You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Donna Scott.

ASSISTANT: How may I assist you today?

USER: Can you please help me in booking my flight ticket from SFO to CLT?

ASSISTANT: Sure, I am happy to help you with the ticket booking. Can I know your trip dates?

USER: My travelling dates are June 12 and June 14.

ASSISTANT: Ok, is there any preference related to connection limit?

USER: I need direct flight.

ASSISTANT: Ok, please tell me your particular timings to depart and return.

USER: My return ticket should be at afternoon time.

ASSISTANT: Sorry to inform you that, there is no flight found in this route which is returning in the afternoon time.

USER: Ok, thank you for checking.

ASSISTANT: You are most welcome. Thanks for opting us.