You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you?

USER: My name is Brenda Evans. Will you help me in booking the flight ticket from ORD to DEN?

ASSISTANT: Sure, please provide your itinerary dates.

USER: Sure, I would like to travel on 08/17 and return on 08/19.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: Hawaiian airlines with flight 1000 is providing service on your route with a connecting flight and ticket costs you 400 in business class.

USER: It's perfect. Please reserve the ticket.

ASSISTANT: Your ticket is confirmed, have a safe and happy journey.

USER: Thanks a lot.

ASSISTANT: Thank you for approaching us.