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

ASSISTANT: Hello, how may I best serve you today?

USER: I need your help in booking a flight ticket, can you please help me to find a flight which is departing in the afternoon time?

ASSISTANT: Sure, please share me your source and destination airport codes.

USER: Thank you. I want to start my journey from CLT to reach DTW.

ASSISTANT: May I know your travel dates?

USER: The planned travel dates are Mar 18 and Mar 20.

ASSISTANT: Is there any class preferences for you?

USER: No, I am ok with any type of class to travel.

ASSISTANT: Do you want to travel in connecting flight or direct flight?

USER: I need a single connecting flight to travel.

ASSISTANT: Please wait for a while.

USER: Ok, take your time.

ASSISTANT:  Sorry to say that, there are no flights available on the routes of your journey.

USER: It's ok, not a problem with that. Anyways thank you for your time.

ASSISTANT: Thank you for availing us.