You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I have a party in Las Vegas, I must that party.So, can you book the flight ticket?

ASSISTANT: Ok, may I know your source and destination codes?

USER: Sure, my source airport code is DCA, and destination airport code is LAS.

ASSISTANT: On which dates you want to travel?

USER: My probable travelling dates are from 10/10 till 10/12.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: As per our details, I found a flight-1004 with single connection and airline is Hawaiian. can I proceed?

USER: Please, proceed it.

ASSISTANT: May I know your name?

USER: Myself Linda Campbell.

ASSISTANT: Your booking is confirmed.

USER: Thank you for booking my flight ticket.

ASSISTANT: You are welcome, have a safe flight.

USER: Most welcome.