You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I wan to book the flight ticket from ORD to EWR. Can you please help me?

ASSISTANT: Sure, may I know your planned trip dates?

USER: My travel dates are July 15 and July 17.

ASSISTANT: Do you have any connection limit?

USER: I need a single connection flight.

ASSISTANT: Any other requirements to be met?

USER: I prefer to travel to business class.

ASSISTANT: May I know your good name?

USER: Michael Moore.

ASSISTANT: Sorry, there are no flights found with your given details.

USER: Ok, thank you for the information.

ASSISTANT: Thank you for reaching us.