You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am Donna Gonzalez. I am planning to attend my nephew birthday in DC - IAD, so please help me in booking a flight ticket from IL - ORD.

ASSISTANT: Sure, I am here to help you. When would you like to start your journey?

USER: I want to fly on 12/11 and return on 12/13.

ASSISTANT: Do you need a lay by in between your journey?

USER: Yes, I need a halt in between my journey.

ASSISTANT: Please, wait a minute.

USER: Sure.

ASSISTANT: Thank you for your time. There is a connecting flight available with fare 100 in Delta airline. Can I reserve it for you?

USER: You can proceed to booking.

ASSISTANT: Your ticket has been reserved with flight number 1019.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us, have a safe journey.