You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

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

ASSISTANT: Please provide your trip dates.

USER: My trip dates are 17 to 19 of Dec.

ASSISTANT: Do you need any connection limit?

USER: I need a connecting flight.

ASSISTANT: Is there any other specifications?

USER: No.

ASSISTANT: May I know your name?

USER: I am Gregory Evans.

ASSISTANT:  There is a flight in American airlines with the ticket price of 200 having one connection and economy class. Can I proceed to booking?

USER: Please proceed.

ASSISTANT: Your ticket is confirmed in flight 1009.

USER: Thank you.

ASSISTANT: Thank you for choosing us.