You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I help you?

USER: I am Karen Johnson. I have planned to attend Cricket match in Denver, so I need to book a ticket. Can you help me with that?

ASSISTANT: Sure, can I know your preferable dates?

USER: I want to travel on 08/21, and need to catch return flight on 08/23.

ASSISTANT: Ok, let me know your origin and destination airport codes?

USER: I need to leave from my nearest airport LAX to reach DEN.

ASSISTANT: Do you have any halt in between your journey?

USER: Yes, I need a halt.

ASSISTANT: UA airline is available for you with single connection and price is 100. Shall I proceed?

USER: Proceed with the booking.

ASSISTANT: Your ticket is confirmed with 1005 flight number.

USER: Thanks for the help.

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