You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What kind of help are you looking for?

USER: I am Charles Adams, I want to book a flight from Phoenix to spend my holidays with my grand father at New York. Can you help me to book a connecting flight for me?

ASSISTANT: Sure, we are here to make your flight reservation. When are you planning to start and return on?

USER: I will fly on 07/07 and return on 07/09.

ASSISTANT: May I know your preferable airport in New York?

USER: I will use NY-JFK airport for landing at New York.

ASSISTANT: Please share me your boarding point?

USER: My boarding point is AZ-PHX.

ASSISTANT: Thank you for your details. There are no flights available with the given specified dates.

USER: Ok, thank you for the information.

ASSISTANT: Thank you.