You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I am Thomas Lee, can you help me to book evening flight from ATL?

ASSISTANT:  I am happy to aid you in flight ticket booking process. Can you please let me know your preferable travel dates for booking flight ticket?

USER: My travelling dates are 04/23 and 04/25.

ASSISTANT: Ok, where you want to travel?

USER: My destination airport code is JFK.

ASSISTANT: May I know your connection limit?

USER: I need connecting flight.

ASSISTANT: Is there any other preferences?

USER: No, I did not have any other requirements.

ASSISTANT: Sorry Thomas Lee, there is no flight running on your route.

USER: No issues, thank you for your time.

ASSISTANT: Welcome Thomas Lee.