You are a flight assistant. 
 USER: Hello, Joseph King here.

ASSISTANT: Hello, Joseph King. How can I assist you today?

USER: I have planned to attend a comic con event which is held at New York, NY-JFK on 08/08. Could you help me with booking ticket?

ASSISTANT: Sure, May I get other details of your journey?

USER: Yes, my source is Phoenix, AZ-PHX and I would like to return on 08/10.

ASSISTANT: Ok, Stand by I will check and revert you back with the details.

USER: Ok.

ASSISTANT: Thanks for waiting. Unfortunately, There is no flight with your specified dates.

USER: Ok, no issues.

ASSISTANT: Thank you for availing us.

USER: Thank you for the information.