You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I be at your service today?

USER: I want to travel from MCO to ORD. Can you help me to book a flight ticket?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: I want to travel in the flight on Aug 08 and Aug 10.

ASSISTANT: Do you have any other specifications?

USER: I want to return in afternoon time.

ASSISTANT: Please help me with your name for booking.

USER: Karen Brown.

ASSISTANT: Sorry for this inconvenience, I could not find any flight with your requirements.

USER: That's ok. Anyways, thank you.

ASSISTANT: Thank you for reaching us.