You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: Can you please help me in booking a flight ticket from SFO to CLT?

ASSISTANT: Ok, please let me know your dates?

USER: My preferable journey dates are Apr 03 and Apr 05.

ASSISTANT: Ok, please let me know your specifications.

USER: I don't have any specifications for this trip.

ASSISTANT: May I know your name to book?

USER: My name is George Scott.

ASSISTANT: Sorry, there are no fights available at your location.

USER: Ok, not an issue. Thank you for providing information.