You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I assist you today?

USER: Can you please help me in booking my flight ticket from IAD to LAS?

ASSISTANT: Sure, can you please share your journey dates?

USER: My planned travel dates are Dec 08-10.

ASSISTANT: Do you have any connection limit?

USER: I prefer a connecting flight.

ASSISTANT: Let me know your class preference?

USER: I am comfortable in any class.

ASSISTANT: May I know your name?

USER: I am Kathleen King.

ASSISTANT: Any other requirements to be met?

USER: No.

ASSISTANT: Ok, we found connecting flight 1017 in Spirit Airlines with fare of 200. Shall I proceed with economy class?

USER: Ok, please proceed.

ASSISTANT: Ok, your flight ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for opting us.