You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I am Sharon Scott. I want to book a flight ticket on 08/23 and return on 08/25, so can you book me a flight ticket from Denver to Las Vegas?

ASSISTANT: Sure, can I have your airport codes?

USER: My airport codes are CO-DEN and NV-LAS.

ASSISTANT: There is a connecting flight with price 200, flight number is 1023. Shall I make a move?

USER:   Please proceed with booking.

ASSISTANT: Your ticket has been confirmed with JetBlue airlines.

USER: Thank you.