You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Can you help me in booking my flight ticket from ATL to EWR?

ASSISTANT: May I know your travel dates?

USER: My trip dates will be Oct 21st to Oct 23rd.

ASSISTANT: Do you have any connecting preferences?

USER: I am fine with any connection.

ASSISTANT: Is there any other concern?

USER: My return time should be in the evening.

ASSISTANT: May I know your name please?

USER: I am Sharon Anderson.

ASSISTANT: No flights found as per your preferences at the moment.

USER: Its ok, thank you.

ASSISTANT: Thank you for choosing us.