You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am Virginia Parker. Can you help me to book a flight from CLT to DEN?

ASSISTANT: Sure, may I know your planned travel dates?

USER: My travelling dates are 01 and 03  Mar.

ASSISTANT: Is there any class preference for you?

USER: I prefer to travel in economy class.

ASSISTANT: May I know your connection limit?

USER:  No,I would like to return in the afternoon.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Sorry to say that, no flights were found with your given details.

USER: Not an issue, Thank you for the information.

ASSISTANT: Thank you for reaching us.