You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I would like to meet my close friend at New York, please help me in booking a ticket from PHL to EWR.

ASSISTANT: Sure, may I know your planned travel dates please?

USER: My planned travel dates are 06/25 and 06/27.

ASSISTANT: Sorry, there is no flight available on your requested dates.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: May I know your good name please?

USER: My name is Anthony King.

ASSISTANT: Thank you.