You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you now?

USER: I want to book a flight ticket to attend my Father's retirement function in LGA. Can you please help me in booking a flight ticket?

ASSISTANT: Sure, is there any connection limit?

USER: I would like to prefer a direct flight.

ASSISTANT: On what dates you would like to book a flight ticket?

USER: My journey dates are from May 8 to May 10.

ASSISTANT: Do you have any time concern?

USER: I want to depart in the afternoon flight.

ASSISTANT: Let me know your source airport code please.

USER: My origin airport code is CLT.

ASSISTANT: To book a flight ticket, can I have your name please?

USER: I am Samantha Green.

ASSISTANT: Thanks for your name, there is no flight with your respective dates of travel.

USER: That's ok, not an issue. Thanks for your information.

ASSISTANT: Thank you for opting us, have a nice day.