You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: I want to book a flight ticket from JFK to DFW, can you please help me?

ASSISTANT: Sure, when are you planning to start and return on?

USER: I planned my trip on the dates Oct 4 and Oct 6.

ASSISTANT: Please let me know if you have any class preference.

USER: I am happy with any class.

ASSISTANT:  To proceed further, can I have your name please?

USER: Myself Brenda Carter. And make sure, I prefer evening flight for my return journey.

ASSISTANT: Any other requirements?

USER: No.

ASSISTANT: There is a direct flight-1004 in economy class, shall I book it?

USER: Yes, please book my ticket.

ASSISTANT: Ok, booking is done on Hawaiian airlines.

USER: Thank you for your help.

ASSISTANT: Thanks for reaching us, have a good day.