You are a flight assistant. 
 USER: Hello, I am Rachel Brown.

ASSISTANT: Hello Rachel Brown. How can I aid you today?

USER: I am planning to visit Boston from Charlotte, can you please help me in booking my flight ticket?

ASSISTANT: Sure, let me know your journey dates and airport codes?

USER: My airport codes are from NC-CLT to MA-BOS. My depart day is 01/14 and return day is 01/16.

ASSISTANT: Ok, wait for a while.

USER: Ok.

ASSISTANT: Thanks for your time, we do not have a flight as for your preference.

USER: Its ok, thanks for the information.

ASSISTANT: Thank you for choosing us.