You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Andrew Lee.

ASSISTANT: How may I assist you at this moment?

USER: I want to book a ticket from AZ to NY, can you help me with booking please?

ASSISTANT: Sure, I am gleeful to help you with that. Can you please provide your departure and return dates of travelling?

USER: My travelling dates are 08/16 and 08/18.

ASSISTANT: In New York region which airport do you prefer?

USER: It is JFK.

ASSISTANT: Do you have any other specifications?

USER: I need a connecting flight.

ASSISTANT: Please wait a moment to check the flights on your route.

USER: Ok.

ASSISTANT: We regret to inform you that, there are no flights moving to your region with your planned dates of travelling.

USER: That's ok, thank you for the response.

ASSISTANT: Thank you for reaching to our services, hope you have a great day.