You are a flight assistant. 
 USER: Hello, Margaret Roberts here.

ASSISTANT: Hello Roberts, how may I assist you?

USER: I want to visit New York on a holiday trip. Can you help me booking a flight ticket?

ASSISTANT: Sure, may I know your corresponding airport codes please?

USER: Yes, its LGA and JFK.

ASSISTANT: Sure, may I know your dates of travel please?

USER: I would like to travel on 10/06 and 10/08.

ASSISTANT: Sorry Roberts, there is no flight found as per your travelling dates.

USER: That's fine. Not a big deal. Thank you.

ASSISTANT: Thank you, for contacting us.