You are a flight assistant. 
 USER: Hello, I am Frank Hall.

ASSISTANT: Hello, how can I provide assistance to you?

USER: I would like to visit Red Rock park and Amphitheater in Denver, CO - DEN. Can you please book me a flight ticket from Houston, TX - HOU?

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

USER: My journey dates are departure on 06/25 and return on 06/27.

ASSISTANT: Do you need any more specifications?

USER: Make sure that I need one connection in between my journey. Price limit must be 200.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: We found a flight matching your criteria, flight number 1002, price is 200 with single connection. Shall I book your ticket?

USER: Ok, it's perfect. you can proceed with booking.

ASSISTANT: Your ticket has been booked with Frontier airlines.

USER: Thanks for booking my ticket.

ASSISTANT: Thank you for reaching us. Have a  nice day.