You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I aid you?

USER: Could you please book a ticket on 01/23 and return on 01/25?

ASSISTANT: Sure, may I know your trip dates?

USER: My airport codes are OAK and CLT.

ASSISTANT: May I know your name please?

USER: My name is Margaret Brown.

ASSISTANT: Do you have any other specifications?

USER: I need halt. My fare limit is 200.

ASSISTANT: There is a connecting flight with price of 200 and 1028 flight number. Shall I proceed?

USER: Please proceed.

ASSISTANT: Your booking has been confirmed with Delta airline.

USER: Thank you.

ASSISTANT: Thank you for availing us.