You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,.

USER: I am Debra White.

ASSISTANT: How may I help you?

USER: I want to visit Denver to see Mount Evans with my sister, can you please book me a ticket under price 200?

ASSISTANT: Sure. Could you please let me know your airport codes?

USER: My airport codes are Houston, TX-HOU and Denver, CO-DEN.

ASSISTANT: Please mention travelling dates, in order to book a ticket.

USER: My scheduled dates are from 08/15 to 08/17.

ASSISTANT: Ok. Ticket is available with airline JetBlue, price is 100. Flight connections is 1 with number 1010.

USER: Ok, please proceed for booking.

ASSISTANT: Shall I book ticket to Denver? Ticket is booked to Denver.

USER: Thank you.

ASSISTANT: Thanks.