You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am planning for a round trip, could you please help me with booking a flight ticket from EWR to EWR?

ASSISTANT: May I know your dates of travel?

USER: I would like to take off on 03/07 and return on 03/09.

ASSISTANT: May I know your name please?

USER: I am Nancy Robinson.

ASSISTANT: There is no flight found with your requirements.

USER: That's ok, I will find an another alternate way to complete my trip.

ASSISTANT: Thank you for reaching us.

USER: Anyways, thank you for the information.