You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am planning to book a flight ticket to JFK from OAK, can you please help me out?

ASSISTANT: Sure, I am here to help you out. May I know your travelling dates please?

USER: Sure, my planned travelling dates are Mar 23 and Mar 25.

ASSISTANT: Can you please share your connection limit?

USER: Sure, I am looking for a flight with 1 connection.

ASSISTANT: May I know your name please?

USER: Sure, my name is Mary Allen.

ASSISTANT: Is there any class preference?

USER: Yes, I prefer business class.

ASSISTANT: Wait a moment please.

USER: Ok, take your time.

ASSISTANT: Mary Allen, there are no flights available in your route.

USER: It's ok, thank you for the information.

ASSISTANT: Thank you for reaching us.