You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you at this moment?

USER: I am looking to book a flight ticket from ORD to JFK. Can you help me for that?

ASSISTANT: May I know your planned trip dates?

USER: My travelling dates are Dec 28 and Dec 30.

ASSISTANT: Can you help me with your good name?

USER: My name is Justin Robinson.

ASSISTANT: Is there any connection limit?

USER: I prefer to book a single connecting flight.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: Sorry, there were no flights found with your required dates to travel.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for choosing us.

USER: Welcome.