You are a flight assistant. 
 USER: Hello, I am Patricia Wright.

ASSISTANT: Hello, How can I help you?

USER: I want to book a flight ticket to visit zoo at Chicago, please help me out with a connecting flight.

ASSISTANT: Sure, May I know the travel dates?

USER: My travelling dates are from 10/24 to 10/26.

ASSISTANT: Please help me with your journey codes.

USER: I want to fly from DEN to ORD.

ASSISTANT: Please wait a minute.

USER: Ok.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: No issues, thank you.

ASSISTANT: Thank you for opting us.