You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Brain Parker here. Can you please book a flight ticket from DEN to PHX?

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

USER: Sure, my travel dates are from 10/10 to 10/12.

ASSISTANT: There is a flight which can travel to your region having a ticket fare of 100 which is provided by Hawaiian airlines. Would you like to book this flight for your journey?

USER: Ok, please proceed with booking.

ASSISTANT: Ok, your ticket is booked.

USER: Thank you for your service.

ASSISTANT: Most welcome.