You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I aid you?

USER: I am Kimberly Davis, can you help me to book a flight from LAS for a round trip?

ASSISTANT: Sure. May I know your journey dates?

USER: My travelling dates are 12/24 and 12/26.

ASSISTANT: Do you have any preferences?

USER: I need a connecting flight.

ASSISTANT: You have a flight 1012 in Delta airline and price 100 with a connection, Shall I proceed?

USER: Proceed with booking.

ASSISTANT: Your reservation is done.

USER: Thank you.

ASSISTANT: Thank you.