You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Please reserve me a flight ticket from CLT to ORD.

ASSISTANT: Sure, can you share me your trip dates?

USER: My trip dates are July 29 and July 31.

ASSISTANT: Do you have any specifications?

USER: I would like to depart in the afternoon time and an connecting flight.

ASSISTANT: Can I know your good name?

USER: I am Matthew Anderson.

ASSISTANT: Sorry, no flights are available in this route as per your requested dates.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for opting us.