You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. Is there any help that I can assist you?

USER: Can you please help me with booking a flight ticket from DFW to LAS?

ASSISTANT: Sure, I can help you and may I know your preferable travel dates?

USER: My travel dates are Dec 20 and 22.

ASSISTANT: Please let me know if you have any connection preference.

USER: I need a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Can I know your name please?

USER: My name is Shirley Moore.

ASSISTANT: Based on your request, one of the flight 1011 which is providing by United airlines with a fare of 200 and there is a 1 drop, can I confirm your flight ticket booking with this airlines?

USER: You can proceed with booking.

ASSISTANT: I have confirmed your flight ticket booking in the above flight.

USER: Thanks for the help.

ASSISTANT: You are welcome.