You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Christopher Martinez here. I need to travel from DEN to MSP. Can you please help me to book my flight ticket?

ASSISTANT: Sure, we are glad to help you. May I know your journey dates?

USER: Ya sure. My depart is on 02/22 and returning is on 02/24.

ASSISTANT: Wait a while.

USER: OK.

ASSISTANT: I have found a flight with airline AA and the flight number is 1001 with 1 connection and price 100. Can I reserve?

USER: But I need a direct flight.

ASSISTANT: We did not found a direct flight with your journey dates.

USER: OK.

ASSISTANT: Thank you for choosing us, we hope we hear you back.

USER: Thank you for the information.