You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Can you please book a flight ticket from CLT to DFW?

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

USER: Sure, I have planned my travel dates as Mar 13 and Mar 15.

ASSISTANT: Do you have any airline preference?

USER: Sure, I would choose normal cost airlines.

ASSISTANT: Can you have any connection limit?

USER: I am looking for single connecting flight.

ASSISTANT: Is there any other specifications?

USER: No.

ASSISTANT: May I know your name please.

USER: Sure, myself Kimberly Clark.

ASSISTANT: Sorry, no flights are found on your travel dates.

USER: Oh! It is sad to hear. Anyway, thank you for your time.

ASSISTANT: Thank you for reaching us.