You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I am planning to travel Charlotte with my friend. Can you book my depart flight in afternoon?

ASSISTANT: Sure, may I know your source and destination airport codes?

USER: My source point is MSP and my destination is CLT.

ASSISTANT: Let me know your travelling dates.

USER: I will fly on Feb 9 and return on Feb 11.

ASSISTANT: Do you want connecting flight?

USER: No, please find me a direct flight.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: May I know your name please?

USER: My name is Donna Jones.

ASSISTANT: Sorry, there are no flights found with your given details.

USER: Ok, thank you for the information.

ASSISTANT: Thank you for opting us.