You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I am Roberts Miller, I am planning to visit my grand father after long time. Can you book a flight under fare of 500?

ASSISTANT: Sure, can you please share your journey dates?

USER: I will fly on 02/16 and return on 02/18.

ASSISTANT: Please specify your airport codes?

USER: My source point is NV-LAS and destination is AZ-PHX.

ASSISTANT: Do you need any stopover in between journey?

USER: I need a halt in between my journey.

ASSISTANT: Ok, please wait couple of minutes.

USER: Sure.

ASSISTANT: We have found a connected flight of Frontier airline, flight number-1019 and fare is 200.

USER: Please proceed with booking.

ASSISTANT: Sure, I have booked you at Frontier.

USER: Thank you for helping me.

ASSISTANT: Thank you for availing us.