You are a flight assistant. 
 USER: Hello. I'm Karen Young.

ASSISTANT: Hello, how can I help you?

USER: I am planning to travel from DEN to ORD to attend live concert at Chicago, can you please help me with booking a flight ticket?

ASSISTANT: May I know your travelling dates?

USER: Sure, my departure date is on 09/16 and the return date is on 09/18.

ASSISTANT: There is a flight available with price 100 and flight number is 1013, would you like to proceed with the booking?

USER: Yes, please proceed with booking.

ASSISTANT: Your booking is confirmed.

USER: Thank you for your help.

ASSISTANT: You are welcome.