You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Can you help me to book a flight ticket from JFK to IAD?

ASSISTANT: Sure, we are happy to help you. When are you planning to make your journey?

USER: My travel dates are Dec 05 and Dec 07.

ASSISTANT: Do you have any break in between journey?

USER: I prefer lay by in between my journey.

ASSISTANT: Is there any other specifications for you?

USER: I would like to prefer business class flight ticket.

ASSISTANT: May I know your good name?

USER: I am Matthew Nelson.

ASSISTANT: Sorry, no flights are available on your journey routes.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for choosing us.