You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Dorothy Adams here. Please help me out in booking the ticket from DCA to PHX.

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

USER: My trip dates will be 12/17 to 12/19.

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

USER: Please confirm with it.

ASSISTANT: Ok, your ticket is booked.

USER: Thank you for booking.

ASSISTANT: Most welcome.