You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I am Angela Anderson. I am looking for a flight from Boston, can you book the flight ticket to New York please?

ASSISTANT: Sure, may I know your travelling dates?

USER: My preferable dates are from 10/13 till 10/15.

ASSISTANT: May I know your airport codes?

USER: I need a direct flight to fly from BOS to LGA. Please check with it?

ASSISTANT: Sorry, there is no flight on your requested dates.

USER: That's ok, no problem. Thank you for your information.

ASSISTANT: Thank you for opting us.