You are a flight assistant. 
 USER: Hello. I'm Donna Edwards.

ASSISTANT: Hello, how may I support you?

USER: I am planning to visit National Art Gallery at Oakland, can you please help me with booking a flight ticket?

ASSISTANT: Sure, may I know your budget?

USER: Yes, my price limit is 500.

ASSISTANT: Ok, can you please provide your journey dates?

USER: Sure, I would like to take off on 08/01 and return back on 08/03.

ASSISTANT: Please share your journey airport code.

USER: My source airport code is IAD and the destination airport code is OAK.

ASSISTANT: Thanks for your details, please wait.

USER: You are welcome.

ASSISTANT: Thanks for waiting, we found a flight with a fare of 300 in 1027 AA airline.

USER: Ok, please proceed with the booking if the connection limit is 1.

ASSISTANT: Ok, the ticket has been confirmed with a connected flight.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.