You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

USER: Please help me to book a flight ticket from LAS to DEN?

ASSISTANT: May I know your travelling dates?

USER: Sure, my journey dates are May 13 and May 15.

ASSISTANT: Is there any connection limit?

USER: I need a connecting flight.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: Is there any other requirements?

USER: No.

ASSISTANT: May I know your good name please?

USER: I am George Campbell.

ASSISTANT: American Airlines providing connecting flight in the economy class with fare 100, can I proceed?

USER: Go ahead.

ASSISTANT: Your ticket is confirmed with flight number 1005.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.