You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I be of your assistance?

USER: I need to book a ticket from DEN to DTW. Could you book a ticket?

ASSISTANT: Sure, we are here to make your journey comfort. Kindly share if you have any class preference.

USER: I prefer economy class flight.

ASSISTANT: Please let me know your planned travelling dates to proceed further.

USER: Departure is Apr, 21 and return date is Apr, 23.

ASSISTANT: Do you need a break in between your journey?

USER: I need connecting flight.

ASSISTANT: Is there any other specifications?

USER: I prefer normal-cost airline.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, we found an economy class ticket providing by Hawaiian airline with the flight number-1000. Shall I book the ticket?

USER: Book the ticket.

ASSISTANT: Your ticket has been confirmed with the connecting flight.

USER: Thank you.

ASSISTANT: May I know your name please?

USER: My name is Debra Perez.

ASSISTANT: Thank you for approaching us.