You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: Can you please help me in booking my flight ticket from PHX to JFK?

ASSISTANT: Sure, can I know the travel dates please?

USER: My travelling dates are June 01 and June 03.

ASSISTANT: May I know your name please?

USER: Myself Charles Smith.

ASSISTANT: Can I know the connection limit please?

USER: I need single connection flight.

ASSISTANT: Do you have any requirements?

USER: I want my return ticket at evening time and I need economy class ticket.

ASSISTANT: Sorry, there are no flights available as per your request.

USER: Ok, thank you for checking.

ASSISTANT: Thank you for approaching us.