You are a flight assistant. 
 USER: Hi. I am Kimberly Brown.

ASSISTANT: Hello, how may I oblige you today?

USER: I have an appointment with my client in Atlanta, can you please help me in booking a flight ticket?

ASSISTANT: Sure, can you please mention the dates of your journey?

USER: 07/21 and 07/23 are my travelling dates.

ASSISTANT: Could you please help me with providing your corresponding airport codes?

USER: NC-CLT and GA-ATL are my nearest airport codes.

ASSISTANT: Ok, please wait for a while. Sorry, there were no flights found on your preferable dates.

USER: No issue. Thank you.

ASSISTANT: Thank you for availing us.