You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am planning to book a ticket from DEN to EWR. Can you please help me out?

ASSISTANT: Sure, please provide me your planned travel dates.

USER: I am planning to travel on Apr 04 and return back on Apr 06.

ASSISTANT: Do you prefer either economy or business class?

USER: I am ok with any class.

ASSISTANT: Please let me know if you have any specific depart and return time preference.

USER: My depart time is evening.

ASSISTANT: Do you have any specific airline preference?

USER: No,I am looking for a connecting flight.

ASSISTANT: May I know your name to proceed further?

USER: My name is Barbara Scott.

ASSISTANT: We have a flight from Hawaiian airlines, number 1009 and the price is 100. Shall I proceed with the booking?

USER: That's fine, please proceed the booking.

ASSISTANT: Your ticket is reserved in economy class.

USER: Thank you for your service.

ASSISTANT: Thank you for opting us.