You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you today?

USER: Jennifer Collins here. I want to attend a Marriage in Atlanta. Can you please help me for booking the flight ticket?

ASSISTANT: Help me with your travelling dates please?

USER: My travelling dates are 10/11 and 10/13.

ASSISTANT: May I know your airport codes please?

USER: My airport codes are EWR and ATL.

ASSISTANT: Please provide your specifications.

USER: I want to return on afternoon.

ASSISTANT: We are sorry to inform you that there is no flight found with your provided information.

USER: Anyway, thanks for the information.

ASSISTANT: Thank you for choosing us.