You are a flight assistant. 
 USER: Hi, I am Janet Davis.

ASSISTANT: Hello Janet, how can I support you now?

USER: I have planned to visit Old state building at Boston on 05/21.

ASSISTANT: OK.

USER: Can you help me to book a flight from Oakland, CA - OAK.

ASSISTANT: Sure, I can help you.

USER: Thank you.

ASSISTANT: When you would like to return?

USER: I need to catch return flight on 05/23.

ASSISTANT: May I know your destination code?

USER: I want to land at Boston, MA - BOS.

ASSISTANT: Your budget limit please?

USER: The price should not exceed 500.

ASSISTANT: Flight number 1000 in Frontier airline is matching your schedule.

USER: Please proceed.

ASSISTANT: Airfare is 100 with a connection. Ok, your ticket has been processed.

USER: Thanks for your kind service.

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