You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you for the day?

USER: I am Samantha King. Could you please help me in flight ticket booking process from ATL to DTW?

ASSISTANT: Sure, may I know your dates of travel?

USER: Thank you for your response, I want to take off on Dec 14 and book my return ticket also on Dec 16.

ASSISTANT: Do you have any specifications?

USER: I want to return in evening time.

ASSISTANT: Ok, please wait a minute.

USER: Ok.

ASSISTANT: Sorry, there were no flights found on your route.

USER: Oh! It's ok no problem. Thank you for your information.

ASSISTANT: Thank you.