You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I am Gregory Martin. Can you please book a flight ticket from EWR to JFK?

ASSISTANT: Sure, may I know your travel dates?

USER: Sure, I have planned my travel dates as Apr 12 and Apr 14.

ASSISTANT: Do you have any specifications?

USER: I would like to depart in the afternoon time and returning in evening time. So please check with these details.

ASSISTANT: Ok, please wait a minute.

USER: Sure but please check for connecting flight.

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

USER: Oh! It is sad to hear. Anyway, thank you for your time.

ASSISTANT: Thank you for reaching us.