You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: I want to visit New York, can you please book my flight ticket from OAK to EWR?

ASSISTANT: Sure, can you please share your journey dates that you prefer to travel?

USER: Thank you. I have to depart on Mar 17th and return back on Mar 19th.

ASSISTANT: Do you have any connection limit?

USER: I only need a flight with single connection.

ASSISTANT: Is there any other specifications?

USER: No.

ASSISTANT: Please share your name.

USER: Myself Katherine Clark.

ASSISTANT: Sorry to say, no flights found with your requirement.

USER: No problem, thank you for the information.

ASSISTANT: Thanks for reaching us.