You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Deborah Carter.

ASSISTANT: How can I help you at this moment?

USER: Can you help me to book a flight with 200 price limit?

ASSISTANT: Sure, can you please provide your nearest airport codes of travelling?

USER: My airport codes are PHX and DEN.

ASSISTANT: May I know your travelling dates please?

USER: I would like to fly on 08/28 and 08/30.

ASSISTANT: Hawaiian airlines is available on your provided route with a ticket fare of 100, shall I book your ticket?

USER: Ok, proceed with booking.

ASSISTANT: Deborah Carter, your ticket is booked with flight number 1005.

USER: Thank you for your help.

ASSISTANT: Thank you, have a safe journey.