You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you today?

USER: Can you avail me to book a flight from CLT to ORD?

ASSISTANT: Sure, I am gleeful to help you with that. Can you please share your planned travel dates?

USER: My travel dates are Apr 01 and 03.

ASSISTANT: Can I know your connection limit?

USER: I need a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: I want to return in the evening time.

ASSISTANT: May I know your name please?

USER: Dennis Hall here.

ASSISTANT: Sorry to say that, there are no flights found on this route as per your details.

USER: Ok, thank you.

ASSISTANT: Thank you for reaching us, have a great day.