You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. May I know, How best I can serve you the best today?

USER: I have an appointment at New York, NY - LGA on 05/18 with my client so, Can you please assist me to book a ticket?

ASSISTANT: Sure, I need your boarding point. Can you provide it?

USER: Sure, I want to start from New York, NY - JFK.

ASSISTANT: When will you return ?

USER: I intend to return on 05/20.

ASSISTANT: On which name do I need to reserve the ticket?

USER: I am Anthony Moore.

ASSISTANT: Sorry, we cannot provide you the flights at this moment for your journey, due to the flood water at your destination.

USER: Ok, no issues. Thank you.

ASSISTANT: Thanks for your presence.