You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I would like to visit Denver for shopping to buy an gift articles to my sister birthday. Can you please book me flight ticket with fare of 500?

ASSISTANT: Sure, please provide me your journey dates?

USER: My travelling dates are 11/09 and return on 11/11.

ASSISTANT: OK, do you have any connection limit?

USER: I need one connection.

ASSISTANT: Please provide me your airport codes to continue further process.

USER: My origin is NV - LAS and destination is CO - DEN.

ASSISTANT: OK. please wait for few minutes, let me check and revert you.

USER: Sure.

ASSISTANT: Thanks for waiting, I found a flight in Spirit airline with single connection and price of 100. Flight number is 1023. Shall I proceed with booking?

USER: Ok, please proceed with booking.

ASSISTANT: To confirm your ticket, please provide me your good name?

USER: Ashley White is my name.

ASSISTANT: Your ticket has been booked.

USER: Thank you for booking my ticket.

ASSISTANT: Thank you, for reaching us.