You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Laura Moore.

ASSISTANT: How can I aid you?

USER: I would like to visit the Fun fair exhibition with my students in Seattle.Could you please book a flight ticket?

ASSISTANT: Sure. Can I know your travelling dates?

USER: My travelling dates are 11/24 and 11/26.

ASSISTANT: Please share me your airport codes.

USER: My source and destination codes are CO-DEN and WA-SEA.

ASSISTANT: We found a Frontier airline,flight number:1003 and the price is 200. Can I reserve it for you?

USER: Please continue with booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for your service.

ASSISTANT: Thank you.