You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Melissa Young here.

ASSISTANT: Melissa, how may I assist you at this moment?

USER: Can you please help me out in booking the ticket from Los Angeles to Dallas?

ASSISTANT: Sure, I will help you in booking, can you please share your travelling dates?

USER: Sure, I want to depart from here on 03/31 and return by 04/02.

ASSISTANT: May I know your source and destination airport codes?

USER: Sure, my source airport code is LAX and destination airport code is DFW.

ASSISTANT: Delta airline is providing flight with connection 1 price 200 as per your details, can I proceed to booking?

USER: That's fine, please proceed for booking.

ASSISTANT: I confirmed your ticket by flight number 1012.

USER: Thank you so much for booking me the ticket.

ASSISTANT: It's my pleasure.