You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

USER: I am looking for a flight from OAK to EWR, can you help me out?

ASSISTANT: Sure, may I know your planned travel dates?

USER: My trip dates are from Feb 26th till Feb 28th.

ASSISTANT: Do you have any limits on number of connections?

USER: I prefer one stop over flight.

ASSISTANT: May I know your name for the booking process?

USER: Myself Patrick King.

ASSISTANT: Do you have any another specifications on your journey?

USER: No.

ASSISTANT:  Sorry,  we regret to inform you that there is no flight available as per your request.

USER: That's ok, not an issue. Thank you.

ASSISTANT: Welcome, thank you for reaching us.