You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: Can you please book a direct flight with the name of Charles Thomas to Las Vegas, LAS?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Please share your source point?

USER: Washington, IAD is my boarding point.

ASSISTANT: Let me know your travelling dates?

USER: I would like to start my journey on 11/02. My return will be on 11/04.

ASSISTANT: We found a direct flight with the given details, shall I proceed with it?

USER: Yes, you can proceed.

ASSISTANT: Your ticket has been confirmed with a fare of 100.

USER: May I know, what is the airline?

ASSISTANT: Your ticket has been confirmed in Delta airline with flight number 1023.

USER: Thank you for your service.

ASSISTANT: Thank you for availing with us.