You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you now?

USER: I am Sandra Thompson want to visit Los Angeles, can you book a ticket within the fare of 500?

ASSISTANT: Sure, may I know the travelling dates of your journey?

USER: Yes, my dates of travel are 11/18 and 11/20.

ASSISTANT: Ok, can you please mention the airport codes of your journey?

USER: Sure, I want to fly from OAK to LAX.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: Based on your requirement, there is a flight 1005 in Hawaiian airline has the price 200. Can I proceed with this booking?

USER: Yes, proceed with my booking.

ASSISTANT: Your ticket has been booked, have a safe journey.

USER: Thank you.

ASSISTANT: Thank you for approaching us, have a nice day.