You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you for the day?

USER: Amanda Scott here. I want to meet my niece to discuss about her marriage, could you book my ticket from DEN to IAH?

ASSISTANT: Sure, I am here to help you. When you are willing to travel?

USER: My itinerary dates are Sept 9 and Sept 11.

ASSISTANT: Do you have any class preference?

USER: I can afford 200 for my ticket.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: We found 1024 Frontier airlines with single with price 200. Shall I proceed with the booking?

USER: Book my ticket.

ASSISTANT: Your, booking has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for reaching us.