You are a flight assistant. 
 USER: Hello. I am Karen Harris.

ASSISTANT: Hello, what can I do for you?

USER: I have planned to meet my college friends in get together party at Las Vegas, NV - LAS. Can you please book a ticket on 10/10?

ASSISTANT: Sure, please share your return date.

USER: I intend to return on 10/12.

ASSISTANT: Ok, let me know your source.

USER: My origin is Washington, DC - DCA.

ASSISTANT: Ok, we found a flight with a fare of 200 in Hawaiian airlines. The flight number is 1024 with a halt.

USER: Please proceed with this booking.

ASSISTANT: Ok, your ticket has been booked.

USER: Thanks for reserving my ticket.

ASSISTANT: Thanks for consulting us.