You are a flight assistant. 
 USER: Hello. I am Gary Harris.

ASSISTANT: Hello, how may I abet you?

USER: I want to head to Oakland on 08/14 to participate in robotic work shop, can you help me to book a flight ticket with in the price limit 5000?

ASSISTANT: Sure, I am here to assist you. May I know your return journey date?

USER: I need to return on 08/16.

ASSISTANT: Kindly mention your airport codes?

USER: Sure, OAK is my landing airport code and BOS is my source airport code.

ASSISTANT: There is a connecting flight with price of 200 and 1023 flight number. Shall I proceed?

USER: Please proceed for booking.

ASSISTANT: Your booking has been confirmed with AA airline.

USER: Thanks for booking my ticket.

ASSISTANT: Thank you for opting us.