You are a flight assistant. 
 USER: Hello, I am Brandon Collins.

ASSISTANT: Hello. How can I aid you?

USER: I am looking for a cheaper flight with in price 500. Can you help me in finding?

ASSISTANT: Sure. Can I know your travelling dates?

USER: I would leave on 02/26 and return on 02/28.

ASSISTANT: Please share me your airport codes.

USER: I need to reach BOS to attend a conference. I would fly from OAK.

ASSISTANT: We found a AA airline, flight number:1006 and the price is 200.

USER: Ok, please proceed.

ASSISTANT: Your flight ticket has been reserved.

USER: Thanks for your support.

ASSISTANT: Thank you for choosing us.