You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I would like to go Las Vegas next week to meet my friends there, can you please book a flight ticket from DCA to LAS?

ASSISTANT: Sure, please provide your trip dates.

USER: I want to take off on 05/18 and also confirm my return ticket too 05/20.

ASSISTANT: Please hold on for a moment.

USER: Ok.

ASSISTANT: JetBlue airlines with flight 1012 is providing service with 1 connection.

USER: That's nice, please confirm this flight ticket for me.

ASSISTANT: May I know your name to book your ticket?

USER: Sure, my name is Paul Brown.

ASSISTANT: Paul, your ticket is confirmed.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us.