You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you at this moment?

USER: I am Nicole Evans here, I want to reserve my ticket within the price limit 500, can you please help me to book a ticket?

ASSISTANT: Sure, can you please provide your travelling dates?

USER: Sure, my preferable dates of journey is from 11/18 to 11/20.

ASSISTANT: May I know your nearest airport codes of travelling?

USER: Ok, my respective airports codes are from OAK to BOS.

ASSISTANT: JetBlue airlines is available on this route with a ticket fare of 200, shall I book your ticket?

USER: Ok, please proceed with this ticket booking.

ASSISTANT: Nicole Evans, your ticket is booked with flight number 1017.

USER: Thank you for your help.

ASSISTANT: Thank you, have a safe journey.