You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Karen Hill.

ASSISTANT: How may I assist you today?

USER: I want to book a ticket from JFK to MCO to attend seminar, can you help me in booking?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: I am departing on May 17 and return on May 19.

ASSISTANT: Do you need any specifications?

USER: I need a flight with connection limit 1.

ASSISTANT: Do you need any preferences?

USER: I want to return in afternoon time.

ASSISTANT: Sorry, there are no flights found in our database.

USER: That's ok, thank you for your information.

ASSISTANT: Thank you for reaching us.