You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how best can I assist you today?

USER: Can you please help me to book a flight from ORD to LAS?

ASSISTANT: Sure,do you need a connecting flight?

USER: Yes.

ASSISTANT: When do you want to start and return on?

USER: I would like to start on Dec 7th and return on 9th Dec.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Can I know your good name?

USER: My name is Nancy Young.

ASSISTANT: Thank you for your details, we found a connecting flight 1008 in class economy which is in Delta airline. Shall I proceed?

USER: Ok, please proceed.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thank you.