You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I want to  book a direct flight to visit science festival at EWR, can you help me with booking?

ASSISTANT: Sure, can you please mention with your dates of journey?

USER: My journey dates are Oct 14 and Oct 16.

ASSISTANT: May I know your source airport code please?

USER: My source airport code is BOS.

ASSISTANT: May I know your name please?

USER: I am Ryan Carter.

ASSISTANT: Do you have any other specifications please?

USER: No.

ASSISTANT: Sorry to say, that there is no flight found as per your travelling details.

USER: Ok, no problem. Thank you.

ASSISTANT: You are welcome.