You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: Can you please help me to book a ticket from SFO to OAK?

ASSISTANT: Sure, could I have your trip dates, please?

USER: I want to start on Nov 17 and return on Nov 19.

ASSISTANT: Do you have any class preference?

USER: I would prefer economy class.

ASSISTANT: Please  let me know your connection limit?

USER: I need a connecting flight.

ASSISTANT: May I know your good name?

USER: Nicholas Roberts here.

ASSISTANT: Is there any more specifications?

USER: No.

ASSISTANT: We found a connecting flight 1024 from Delta airline has fare 200. Shall I proceed?

USER: You can proceed.

ASSISTANT: Your ticket has been confirmed in economy class.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.