You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: Can you help me to book flight ticket from DFW to CLT?

ASSISTANT: Sure, may I know your name?

USER: Sure, I am Raymond Walker.

ASSISTANT: Thank you, may I know your travel dates?

USER: My travelling dates are Dec 7 and Dec 9.

ASSISTANT: Is there any class preference?

USER: I prefer to travel in economy class.

ASSISTANT: Ok, do you prefer for a direct flight or connecting flight?

USER: I want to travel in a connecting flight.

ASSISTANT: Is there any time concern?

USER: No, thank you for asking.

ASSISTANT: Ok, flight-1025 is available in Delta airlines with single connection and the ticket fare is 200. Can I proceed?

USER: You can proceed.

ASSISTANT: Your booking is confirmed.

USER: Thank you.