You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Anthony Scott. Can you book me a flight ticket from MA-BOS to NY-EWR?

ASSISTANT: Sure, let me know your price limit.

USER: I can bare upto 1000.

ASSISTANT: May I know your travelling dates?

USER: My planned travel dates are 03/14 and 03/16.

ASSISTANT: Please wait for a minute, I will revert to you.

USER: sure.

ASSISTANT: I am sorry to inform that there is no flight available matching with your requirements.

USER: Ok, not an issue.

ASSISTANT: Thanks for availing us.

USER: Thank you.