You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am looking to book a flight ticket from CLT to MSP. Can you help me for that?

ASSISTANT: Sure, I will help you with that. Can I have your travel dates please?

USER: My travelling dates are Dec 06 and Dec 08.

ASSISTANT: Do you like to go with a economy class or business class?

USER: Any class is fine for me.

ASSISTANT: Do you have any particular time for departing and returning?

USER: No.

ASSISTANT: May I know your name in the meanwhile?

USER: My name is Rebecca Scott.

ASSISTANT: Is there any other preferences?

USER: No.

ASSISTANT: There is a connecting flight-1008 in economy class, is it fine for you?

USER: I need a direct flight in my journey.

ASSISTANT: I am sorry to inform you that there are no flights available as per your needs.

USER: That's ok, thank you for checking.

ASSISTANT: Thanks for choosing us.