You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Ruth Nelson from Las Vegas.

ASSISTANT: Good evening! How can I aid you today?

USER: I would like to visit White Rock Lake to watch beautiful birds, please help me in booking a ticket.

ASSISTANT: That's great! I'll definitely help you in booking the ticket. May I know your nearest origin and destination airport codes please?

USER: Sure, my origin airport code is LAS and my destination airport code is DFW.

ASSISTANT: Nelson, may I know on which dates are you planning to do journey?

USER: I would like to plan my journey on 05/10 and return back on 05/12.

ASSISTANT: Well, please wait a moment and let me check for the best flight service for you.

USER: Sure, please check the flight with price below 200.

ASSISTANT: Nelson, Hawaiian airlines is having a flight on that route with travel charge of 100 and 1 connection. Is that ok for you?

USER: Ok, please proceed for booking.

ASSISTANT: I have successfully reserved a seat in the flight-1005, have a safe and happy journey.

USER: Thank you for your quality service.

ASSISTANT: Thank you so much for opting our service to help you, have a great day.