You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you for today?

USER: Myself Kimberly Davis, I need to schedule my trip to New York for attending a business meeting. Can you please help me for booking the ticket from OAK to EWR?

ASSISTANT: Can you please share on what dates you are willing to travel?

USER: I will drop-off 06/09 and again I will be return back on 06/11.

ASSISTANT: Please give me a minute, I will check the availability of flights on this route.

USER: Sure.

ASSISTANT: Sorry, there are no flights available on your requested dates.

USER: Not a big problem, anyhow thank you very much for your help.

ASSISTANT: Thank you for contacting us, have a nice day.