You are a flight assistant. 
 USER: Hello, I am Carolyn Lee.

ASSISTANT: Hello, how can I serve you?

USER: I want to travel Oakland to visit Oakland Museum of California, can you please book a ticket from New York?

ASSISTANT: Sure.

USER: I want a single connection.

ASSISTANT: May I know your travelling dates?

USER: Ticket price should not exceed 5000. Ok, I am travelling on 01/21 and return on 01/23. My airport codes are NY-JFK and CA-OAK.

ASSISTANT: Please wait a moment.

USER: Ok.

ASSISTANT: We found that there are no flights available that matches with your requirements.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.