You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I want to celebrate my birthday at Las Vegas. Could you book my ticket from DFW to LAS?

ASSISTANT: Sure, I am glad to help you with flight ticket booking and can I know your journey dates?

USER: My itinerary dates are Aug 23 and Aug 25.

ASSISTANT: Can I know your name for further proceeding?

USER: Larry Mitchell here.

ASSISTANT: Do you have any other specifications?

USER: I need a connecting flight.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: There is a flight in Delta airlines with a single stop in your flight journey, do you want me to proceed with booking?

USER: Please book my ticket.

ASSISTANT: Based on your request, I have confirmed your flight ticket booking in the above airlines and the flight number is 1023.

USER: Thank you for assisting me.

ASSISTANT: You are welcome and thank you for approaching us.