You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: I am planning to travel from LAX to ORD, help me in booking a flight?

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

USER: My travelling dates are Oct 19 to 21.

ASSISTANT: Can you please share your connection limit?

USER: I prefer single connection flight.

ASSISTANT: Is there any class preference?

USER: Any class is ok for me.

ASSISTANT: May I know your name please?

USER: I am John Thompson.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: John Thompson, there are no flights available in your route.

USER: That's ok, thank you.

ASSISTANT: Thank you for choosing us.