You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: Please help me out in booking the ticket from PHX to LGA.

ASSISTANT: Sure, can you share your trip dates?

USER: My trip dates will be Apr 11 to Apr 13.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: Is there any class preference?

USER: Yes, business class.

ASSISTANT: Are there any other specifications?

USER: No.

ASSISTANT: Please forward your name.

USER: Jennifer Roberts is my name.

ASSISTANT: Sorry, there are no flights found on your specified trip dates.

USER: That's ok, thank you.

ASSISTANT: Thank you for availing us.