You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you today?

USER: I am planning to book a flight ticket to ORD from DEN, can you please help me out?

ASSISTANT: Ok, I am glad to help you with that. Can I know your planned trip dates?

USER: Sure, my planned travelling dates are Apr 06 and Apr 08.

ASSISTANT: May I know your connection limit?

USER: Sure, I am looking for a direct flight.

ASSISTANT: Is there any other requirements?

USER: No.

ASSISTANT: Can I know your good name?

USER: Sure, my name is Alexander Turner.

ASSISTANT: Please wait for a minute.

USER: Ok, take your time.

ASSISTANT: Sorry to inform you that, there are no flights available based on your travelling dates.

USER: It's ok, thank you for the information.

ASSISTANT: Thank you for reaching us.