You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: My name is Matthew Carter, I want to book a flight from Chicago to Denver on 02/08 to meet my cousin. Can you book a connecting flight for me?

ASSISTANT: Sure, may I know your return date?

USER: I will return on 02/10.

ASSISTANT: Can you please share your airport codes?

USER: My source point is IL-ORD and my destination is CO-DEN.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry, there are no flights found with your given dates.

USER: Thank you for the details.

ASSISTANT: Thank you.