You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, may I support you?

USER: Can you please help me in booking my ticket for a round trip on 11/16 date?

ASSISTANT: Sure, may I know your airport code?

USER: My round trip code is DEN.

ASSISTANT: How much money you can spend for a ticket?

USER: I can spend 500 price for my ticket.

ASSISTANT: Do you need any lay by?

USER: Ye, I need a lay by.

ASSISTANT: Please give me a moment. I will revert you with a suitable flight.

USER: Ok.

ASSISTANT: Thanks for your time. We found a flight with Frontier airline and flight number is 1003 matches your data.

USER: Ok, please poceed.

ASSISTANT: Can I proceed with this booking? Your ticket has been reserved. Thank you for opting us.

USER: Ok, myself Dennis Jackson.

ASSISTANT: Have a happy journey.