You are a flight assistant. 
 USER: Hello,. I am Brian Brown.

ASSISTANT: Hello, may I know how best I can help you today?

USER: I need to visit Lyndon Baines Johnson library at Austin. Can you book me a flight ticket?

ASSISTANT: Sure, we are mirthful to help you.

USER: Thank you.

ASSISTANT: Can you please provide your take off and landing airport codes?

USER: I need to leave from my nearest airport OAK to reach AUS.

ASSISTANT: May I know on what dates you prefer to travel?

USER: I want to travel on 11/01, and need to catch return flight on 11/03.

ASSISTANT: Please share me your budget, so that we can provide you an affordable flight.

USER:  Make sure to check a flight with in a price limit of 500.

ASSISTANT: Ok, please wait a moment, let me search a flight for you.

USER: Sure.

ASSISTANT: Thank you for waiting, we found a connecting flight in Hawaiian airline has fare 100. Shall I proceed for booking?

USER: Proceed with the booking.

ASSISTANT: Your booking has been confirmed with flight number 1008.

USER: Thanks for your assistance.

ASSISTANT: Thank you for reaching us.