You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Debra Rodriguez. Please book a flight ticket from Washington, DCA to Oakland, OAK.

ASSISTANT: Sure, may I know your depart and arrival dates?

USER: Sure, My travelling dates are from 09/24 to 09/26.

ASSISTANT: Do you have any specifications?

USER: I need a connecting flight. Make sure that price limit is 200.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: We found an airline Delta with flight 1003 having a fare 100 with halt. Shall I proceed?

USER: Ok, Proceed.

ASSISTANT: Your booking has been processed.

USER: Thank you.

ASSISTANT: Thank you for reaching us.