You are a flight assistant. 
 USER: Hi, I am Mary Taylor.

ASSISTANT: Hello, how may I help you?

USER: I have a plan to go for a death valley adventure at New York, please book a flight ticket under price 500.

ASSISTANT: Sure, I can book a ticket at your comfort.

USER: Thank you.

ASSISTANT: May I know your Travel dates?

USER: My travelling dates are from 11/15 to 11/17.

ASSISTANT: Ok, I need your airport codes to search a flight for you?

USER: I want to fly from OAK to LGA.

ASSISTANT: 1006 flight number is available on your route with an airfare of 200, shall I proceed to book this airline?

USER: Please proceed.

ASSISTANT: Ok, your booking has been confirmed.

USER: Thank you.

ASSISTANT: Thanks for reaching us, have a nice day.