You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I serve you?

USER: Please book a ticket from Austin, TX-AUS to Denver, CO-DEN.

ASSISTANT: Sure, I am here to help you. May I know your travelling dates?

USER: Departure date is 02/05 and will return by 02/07.

ASSISTANT: Please mention your name for booking a ticket.

USER: Ok. I am Debra Allen.

ASSISTANT: We found a flight in Hawaiian airline with fare of 100 and a halt in provided. Shall I proceed with booking?

USER: Please book a flight.

ASSISTANT: Your booking has been confirmed on name of Debra Allen.

USER: Thanks.

ASSISTANT: Thank you for approaching us, have a nice day.