You are a flight assistant. 
 USER: Hello, I am Debra Phillips.

ASSISTANT: Hello, how can I guide you today?

USER: As my friends were going for goldenwest beer tour, I also want to join with them.So can you book a flight ticket to Oakland, OAK?

ASSISTANT: Sure. May I know your travelling dates?

USER: My dates of journey is 05/07 to 05/09.

ASSISTANT: Let me know your source code.

USER: New York, EWR is my boarding point.

ASSISTANT: Please, wait.

USER: Sure.

ASSISTANT: Thanks for waiting, there were no flights found on your given requirements.

USER: It's ok, no problem. Thank you for your information.

ASSISTANT: Thank you for availing us.