You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: Please book a flight ticket from CLT to DTW?

ASSISTANT: Sure, can you please let me know your trip dates?

USER: My journey dates are Apr 04 and Apr 06.

ASSISTANT: Are you comfortable to travel in business class or economy class flight?

USER: I am comfortable with any class.

ASSISTANT: If you have any specifications please let me know, I'll check availability according to that?

USER: I need a connecting flight.

ASSISTANT: For further proceeding, may I know your good name please?

USER: I am Sarah Rodriguez.

ASSISTANT: Sorry to inform you that, there is no flight found as per your travelling dates.

USER: No problem, thank you for your information.

ASSISTANT: Thank you for reaching us.