You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: Myself John Clark from New York.

ASSISTANT: Nice to meet you John.

USER: Thanks, nice to meet you too. I want to go to New York next week for my film shooting purpose. Can you please book a flight ticket for me?

ASSISTANT: Sure, can I know your airport codes please?

USER: Thank you for your positive response, I would like to fly from EWR and destination airport is LGA.

ASSISTANT: Well, may I know your trip dates please?

USER: I want to take off on 03/03 and please confirm my return ticket also on 03/05.

ASSISTANT: Please hold on for a moment.

USER: Ok.

ASSISTANT: Thanks for waiting and sorry to inform you, there is no flight available as per your request.

USER: Oh! It's ok no problem. Thank you for your information.

ASSISTANT: Most welcome, have a nice day.