You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you for today?

USER: I am Larry Miller. I want to attend a marriage in New York.Can you please help me to book a flight ticket?

ASSISTANT: Yes, I can help you in booking a ticket. Can you please provide the airport codes along with travelling dates?

USER: Sure, my airport codes are LGA and EWR. I prefer to travel on 03/22 and 03/24.

ASSISTANT: Ok, please give me a second and I will be back with the flight details.

USER: Sure.

ASSISTANT: Sorry Larry, there are no flights available based on your location.

USER: Ok, that's fine.

ASSISTANT: Thank you for choosing us.Have a good day.

USER: Thank you for your time.