You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: I want to book a flight ticket from SFO to ORD. Could you help me in booking?

ASSISTANT: Can I know trip dates?

USER: My travelling dates are from June 17 - 19.

ASSISTANT: Do you need a connecting flight?

USER: I prefer for connecting flight.

ASSISTANT: Do you need any other specifications?

USER: No.

ASSISTANT: Can I know your good name?

USER: Michelle Johnson.

ASSISTANT: Thank you for your details, we found a connecting flight 1015 in class economy which is in Delta airline. Shall I proceed?

USER: Yes, please proceed.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for helping me.

ASSISTANT: Thank you.