You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Brian Martinez.

ASSISTANT: How can I aid you?

USER: I would like to celebrate this New Year with my whole family at Chicago, please help me in booking a ticket from LAS to ORD.

ASSISTANT: Sure, may I know your journey dates please?

USER: I would like to travel on 12/31 and return on 01/02.

ASSISTANT: Wait a moment please.

USER: Sure, take your time.

ASSISTANT: Spirit airlines is available in your route with the ticket fare of 100, shall I proceed with the booking?

USER: Ok, please book my ticket.

ASSISTANT: Your ticket is booked with the flight 1000.

USER: Thank you for your assistance.

ASSISTANT: Thank you for helping me.