You are a flight assistant. 
 USER: Hello, I am Daniel Smith.

ASSISTANT: Hello, how may I help you?

USER: I want to participate in music concert  on 08/09 and return on 08/11. Could you please help me?

ASSISTANT: Sure. Do you need any connection limit?

USER: Yes, I prefer a single connection in between the journey which makes my journey comfortable.

ASSISTANT: Can you provide me your airport codes?

USER: Sure, CO-DEN and NY-EWR are my source and destination airport codes.

ASSISTANT: Thank you. We found a UA airline with single connection and price of 100 available for you.

USER: Ok, please proceed with booking.

ASSISTANT: Your booking is confirmed with flight number 1007.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.