You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am George Davis. I am planning to celebrate my birthday in New York, so please book a flight ticket from PHX to EWR.

ASSISTANT: Sure, I am here to help you. Could you please share your planned journey dates?

USER: My departure day is June 25, return day is June 27.

ASSISTANT: May I know your connection limit?

USER: I want a flight with one connection.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: Let me know, if you have any other specifications.

USER: My return time should be evening.

ASSISTANT: Please, wait a minute.

USER: Sure.

ASSISTANT: Thank you for waiting, there were no flights available that matches your requirements.

USER: No problem, thank you.

ASSISTANT: Thank you for choosing us.