You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: Can you please help me in reserving the ticket from OAK to ORD?

ASSISTANT: Sure, let me know your travel dates?

USER: I would like to travel on Dec 31 and again I will return back on Jan 2.

ASSISTANT: Do you have any connection limit?

USER: I am comfort to travel in single connection flight.

ASSISTANT: Is there any other specifications?

USER: My airline preference is normal-cost.

ASSISTANT: Can I know your name?

USER: Myself Brenda King.

ASSISTANT: We found a connecting flight 1021 in Delta airline with fare 300 and class is economy. Shall I proceed?

USER: Yes, please go ahead and reserve the ticket.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you very much for reserving the ticket.

ASSISTANT: Thank you for reaching us.