You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you now?

USER: I am Alexander Carter, can you help me with booking ticket from DCA to LAS?

ASSISTANT: Sure, please provide me your travel dates.

USER: Ok, my journey dates are from Nov 23 to 25.

ASSISTANT: Do you have any specifications?

USER: Yes, I want to return in the afternoon time.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need a connecting flight.

ASSISTANT: AA airlines is providing you the connecting flight in business class, shall I proceed?

USER: Yes, you can.

ASSISTANT: Your ticket has been confirmed with flight-1011.

USER: Thanks for your help.

ASSISTANT: Thank you for opting us, have a great day.