You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I need a reservation from PHL to JFK for attending my niece birthday.

ASSISTANT: Can I know your travel dates please?

USER: My travel dates will be from 01/29 to 01/31.

ASSISTANT: May I know your name please?

USER: Myself Robert Moore.

ASSISTANT: Please wait a while. There is no flight available on 01/29 to JFK.

USER: That's fine, no problem with it. Thank you for assisting me.

ASSISTANT: You are welcome. Have a nice day.